Mystics & Statistics

Assessing the 1990-1991 Gulf War Forecasts

Wargames A number of forecasts of potential U.S. casualties in a war to evict Iraqi forces from Kuwait appeared in the media in the autumn of 1990. The question of the human costs became a political issue for the administration of George H. W. Bush and influenced strategic and military decision-making.

Almost immediately following President Bush’s decision to commit U.S. forces to the Middle East in August 1990, speculation appeared in the media about what a war between Iraq and a U.S.-led international coalition might entail. In early September, U.S. News & World Report reported “that the U.S. Joint Chiefs of Staff and the National Security Council estimated that the United States would lose between 20,000 and 30,000 dead and wounded soldiers in a Gulf war.” The Bush administration declined official comment on these figures at the time, but the media indicated that they were derived from Defense Department computer models used to wargame possible conflict scenarios.[1] The numbers shocked the American public and became unofficial benchmarks in subsequent public discussion and debate.

A Defense Department wargame exploring U.S. options in Iraq had taken place on 25 August, the results of which allegedly led to “major changes” in military planning.[2] Although linking the wargame and the reported casualty estimate is circumstantial, the cited figures were very much in line with other contemporary U.S. military casualty estimates. A U.S. Army Personnel Command [PERSCOM] document that informed U.S. Central Command [USCENTCOM] troop replacement planning, likely based on pre-crisis plans for the defense of Saudi Arabia against possible Iraqi invasion, anticipated “about 40,000” total losses.[3]

These early estimates were very likely to have been based on a concept plan involving a frontal attack on Iraqi forces in Kuwait using a single U.S. Army corps and a U.S. Marine Expeditionary Force. In part due to concern about potential casualties from this course of action, the Bush administration approved USCENTCOM commander General Norman Schwarzkopf’s preferred concept for a flanking offensive using two U.S. Army corps and additional Marine forces.[4] Despite major reinforcements and a more imaginative battle plan, USCENTCOM medical personnel reportedly briefed Defense Secretary Dick Cheney and Joint Chiefs Chairman Colin Powell in December 1990 that they were anticipating 20,000 casualties, including 7,000 killed in action.[5] Even as late as mid-February 1991, PERSCOM was forecasting 20,000 U.S. casualties in the first five days of combat.[6]

The reported U.S. government casualty estimates prompted various public analysts to offer their own public forecasts. One anonymous “retired general” was quoted as saying “Everyone wants to have the number…Everyone wants to be able to say ‘he’s right or he’s wrong, or this is the way it will go, or this is the way it won’t go, or better yet, the senator or the higher-ranking official is wrong because so-and-so says that the number is this and such.’”[7]

Trevor Dupuy’s forecast was among the first to be cited by the media[8], and he presented it before a hearing of the Senate Armed Services Committee in December.

Other prominent public estimates were offered by political scientists Barry Posen and John J. Mearshimer, and military analyst Joshua Epstein. In November, Posen projected that the Coalition would initiate an air offensive that would quickly gain air superiority, followed by a frontal ground attack lasting approximately 20 days incurring 4,000 (with 1,000 dead) to 10,000 (worst case) casualties. He used the historical casualty rates experienced by Allied forces in Normandy in 1944 and the Israelis in 1967 and 1973 as a rough baseline for his prediction.[9]

Epstein’s prediction in December was similar to Posen’s. Coalition forces would begin with a campaign to obtain control of the air, followed by a ground attack that would succeed within 15-21 days, incurring between 3,000 and 16,000 U.S. casualties, with 1,049-4,136 killed. Like Dupuy, Epstein derived his forecast from a combat model, the Adaptive Dynamic Model.[10]

On the eve of the beginning of the air campaign in January 1991, Mearshimer estimated that Coalition forces would defeat the Iraqis in a week or less and that U.S. forces would suffer fewer than 1,000 killed in combat. Mearshimer’s forecast was based on a qualitative analysis of Coalition and Iraqi forces as opposed to a quantitative one. Although like everyone else he failed to foresee the extended air campaign and believed that successful air/land breakthrough battles in the heart of the Iraqi defenses would minimize casualties, he did fairly evaluate the disparity in quality between Coalition and Iraqi combat forces.[11]

In the aftermath of the rapid defeat of Iraqi forces in Kuwait, the media duly noted the singular accuracy of Mearshimer’s prediction.[12] The relatively disappointing performance of the quantitative models, especially the ones used by the Defense Department, punctuated debates within the U.S. military operations research community over the state of combat modeling. Dubbed “the base of sand problem” by RAND analysts Paul Davis and Donald Blumenthal, serious questions were raised about the accuracy and validity of the methodologies and constructs that underpinned the models.[13] Twenty-five years later, many of these questions remain unaddressed. Some of these will be explored in future posts.

NOTES

[1] “Potential War Casualties Put at 100,000; Gulf crisis: Fewer U.S. troops would be killed or wounded than Iraq soldiers, military experts predict,” Reuters, 5 September 1990; Benjamin Weiser, “Computer Simulations Attempting to Predict the Price of Victory,” Washington Post, 20 January 1991

[2] Brian Shellum, A Chronology of Defense Intelligence in the Gulf War: A Research Aid for Analysts (Washington, D.C.: DIA History Office, 1997), p. 20

[3] John Brinkerhoff and Theodore Silva, The United States Army Reserve in Operation Desert Storm: Personnel Services Support (Alexandria, VA: ANDRULIS Research Corporation, 1995), p. 9, cited in Brian L. Hollandsworth, “Personnel Replacement Operations during Operations Desert Storm and Desert Shield” Master’s Thesis (Ft. Leavenworth, KS: U.S. Army Command and General Staff College, 2015), p. 15

[4] Richard M. Swain, “Lucky War”: Third Army in Desert Storm (Ft. Leavenworth, KS: U.S. Army Command and General Staff College Press, 1994)

[5] Bob Woodward, The Commanders (New York: Simon and Schuster, 1991)

[6] Swain, “Lucky War”, p. 205

[7] Weiser, “Computer Simulations Attempting to Predict the Price of Victory”

[8] “Potential War Casualties Put at 100,000,” Reuters

[9] Barry R. Posen, “Political Objectives and Military Options in the Persian Gulf,” Defense and Arms Control Studies Working Paper, Cambridge, MA: Massachusetts Institute of Technology, November 1990)

[10] Joshua M. Epstein, “War with Iraq: What Price Victory?” Briefing Paper, Brookings Institution, December 1990, cited in Michael O’Hanlon, “Estimating Casualties in a War to Overthrow Saddam,” Orbis, Winter 2003; Weiser, “Computer Simulations Attempting to Predict the Price of Victory”

[11] John. J. Mearshimer, “A War the U.S. Can Win—Decisively,” Chicago Tribune, 15 January 1991

[12] Mike Royko, “Most Experts Really Blew It This Time,” Chicago Tribune, 28 February 1991

[13] Paul K. Davis and Donald Blumenthal, “The Base of Sand Problem: A White Paper on the State of Military Combat Modeling” (Santa Monica, CA: RAND, 1991)

Posted inCasualty estimation, Methodologies
6 Comments

The Military Budget Wars Are Headed Back to the Future

May 12, 2016
Shawn Woodford

When I mused over how much new strategic debates are sounding like old Cold War strategic debates, I really had no idea. The U.S. national security debate really is going Back to the Future. Mark Perry has an article in POLITICO exploring arguments being advanced by some U.S. Army leaders in support of requests for increased defense budget funding, and the criticism they have drawn.

In early April, a panel comprised of several senior Army officer testified before a Senate Armed Service subcommittee on modernization.

[They] delivered a grim warning about the future of the U.S. armed forces: Unless the Army budget was increased, allowing both for more men and more materiel, members of the panel said, the United States was in danger of being “outranged and outgunned” in the next war and, in particular, in a confrontation with Russia. Vladimir Putin’s military, the panel averred, had outstripped the U.S. in modern weapons capabilities. And the Army’s shrinking size meant that “the Army of the future will be too small to secure the nation.”

These assertions are, predictably, being questioned by, also predictably, some in the other armed services. Perry cites the response of an unnamed “senior Pentagon officer.”

“This is the ‘Chicken-Little, sky-is-falling’ set in the Army,” the senior Pentagon officer said. “These guys want us to believe the Russians are 10 feet tall. There’s a simpler explanation: The Army is looking for a purpose, and a bigger chunk of the budget. And the best way to get that is to paint the Russians as being able to land in our rear and on both of our flanks at the same time. What a crock.”

Perry boils the debate down to what it is really about.

The fight over the Army panel’s testimony is the latest example of a deepening feud in the military community over how to respond to shrinking budget numbers. At issue is the military’s strategic future: Facing cuts, will the Army opt to modernize its weapons’ arsenal, or defer modernization in favor of increased numbers of soldiers? On April 5, the Army’s top brass made its choice clear: It wants to do both, and Russia’s the reason.

Perry’s walk through the various arguments is worth reading in full, but he accurately characterizes the debate as something more than an ecumenical disagreement among the usual Pentagon suspects.

The argument over numbers and capabilities might strike some Americans as exotic, but the debate is much more fundamental—with enormous political implications. “You know, which would you rather have—a high-speed rail system, or another brigade in Poland? Because that’s what this is really all about. The debate is about money, and there simply isn’t enough to go around,” the Pentagon officer told me. “Which is not to mention the other question, which is even more important: How many British soldiers do you think want to die for Estonia? And if they don’t want to, why should we?”

Those looking for a sober, factual debate over the facts and the implications of these issues are likely to be disappointed in the current election year atmosphere. It will also be interesting to see if strategic analysts will offer more than chum for the waters and warmed over versions of old arguments.

Posted inConventional warfare

Human Factors in Warfare: Quantifying Morale

Radio broadcast, 1943. Copyprint. Bob Hope Collection, Motion Picture, Broadcasting and Recorded Sound Division, Library of Congress (150)

My colleague Chris Lawrence has taken me to task with regard to my last post on the topic of morale. I asserted that Trevor Dupuy’s claim that human factors influenced the outcome of combat was controversial. Chris pointed out that it was, in fact, Col Dupuy’s claims that 1) human factors in combat could be measured and quantified; and 2) that quantified human factors should be incorporated into combat models, that were really the sources of controversy.

Chris is indisputably correct about that. In my defense, I chose the wording I used in my post deliberately to weasel around an apparently problematic contradiction. While Col Dupuy did indeed believe that human factors in combat could be quantified, he was dubious about the prospect of individually quantifying some of those specific factors, including morale. Since my post was primarily about Dr. Fennell’s work on morale, I side-stepped that issue. Well, today I am going to wade on in.

Col Dupuy first addressed the quantification of human factors in combat in his book Numbers, Predictions & War, published in 1979. His original combat model, the Quantified Judgment Model (QJM), incorporated 73 different variable elements and parameters, including 11 he defined as intangible. By intangible, he meant variables “which are – at least for the present – impossible to quantify with confidence, either because they are essentially qualitative in nature, or because for some other reason they currently defy precise delineation or measurement.”[1] He also believed that “some (such as logistics) may lend themselves to assessment indirectly through the measurement of their effects.”[2]

He divided those intangible variables into three categories[3]:

Sometimes calculable	Probably calculable; not yet calculated	Intangible; probably individually incalculable
Combat effectiveness Logistics	Leadership Training/experience Initiative	Morale Time Space Momentum Intelligence Technology

With regard to leadership, training, and morale, Col Dupuy asserted that

These subjective qualities are almost impossible to assess in absolute terms with complete objectivity. However, the relative capabilities of the opposing leaders in terms of skill, nerve, and determination can probably have more influence on the outcome of a battle than any of the other qualitative variables of combat— if there is a substantial difference in the qualities of leadership of the opposing sides. The same is true, probably to a somewhat lesser extent, if there are substantial differences in the state of training or of combat experience of the two sides, and if there are great differences in their respective states of morale. Accordingly, where solid historical information warrants, these three variables can be given mathematical weights, either individually, or in relationship with the other elements of combat effectiveness, on the basis of professional military judgment, but (under the present “state of the art”) this weighting process is bound to be highly subjective.[4]

Col Dupuy included morale as an independent variable in the QJM’s combat power formula and offered a table of suggested values [5]. However, he did not explain in any detail how to assess morale or apply it in the QJM.

QJM-TNDM Morale Table

As I quoted in my last post, as of 1987, Col Dupuy continued to contend ambivalently that “even though it may not be easily defined and can probably never be quantified, troop morale is very real and can be very important as a contributor to victory or defeat.” He never resolved this seeming contradiction in his writings, but as with several of the intangible variables he identified, he did acknowledge the potential for defining and quantifying some of them. Dr. Fennell’s demonstration of a strong correlation between morale level and rates of sickness, battle exhaustion, desertion, absence without leave and self-inflicted wounds suggests, at least in the British Second Army in northwest Europe in 1944-45, a potential methodology for quantifying morale which could allow its impact to be measured indirectly in much the same manner Col Dupuy measured combat effectiveness. Whether or not the notion of doing so remains controversial will be interesting to see.

NOTES

[1.] Trevor N. Dupuy, Numbers, Predictions & War: Using History To Evaluate Combat Factors And Predict The Outcome Of Battles (New York: The Bobbs-Merrill Company, Inc., 1979), p. 36

[2] ibid., p. 37.

[3] ibid., p. 33.

[4] ibid., p. 37-38.

[5] ibid., p. 231.

Posted inMethodologies
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Human Factors in Warfare: Measuring Morale

May 5, 2016
Shawn Woodford

Figure One: Second Army, Weekly Admissions per 1,000 to General Hospitals and Casualty Clearing Stations for Sickness, Battle Exhaustion and SIW, 11 June 1944 to 5 May 1945. Morale scale equivalents are presented on the right hand Y-axis. (Dr. Jonathan Fennell)

One of Trevor Dupuy’s more important and controversial contributions to a theory of combat was the assertion that outcomes were dictated in part by behavioral factors, i.e. the human element. Among the influential human factors he identified were leadership, training, experience, and manpower quality. He also recognized the importance of morale.

Morale is an ephemeral quality of military forces and is certainly intangible. Yet even though it may not be easily defined and can probably never be quantified, troop morale is very real and can be very important as a contributor to victory or defeat. The significance of morale is probably inversely proportional to the quality of troops. A well-trained, well-led, cohesive force of veterans will fight well and effectively even if morale is low… Yet for ordinary armies, poor morale can contribute to defeat.[1]

Dr. Jonathan Fennell of the Defence Studies Department at King’s College London recently set out to determine if there were ways of measuring morale by looking at the combat experiences of the British Army in World War II. Fennell proposed

that the concept of morale has no place in a critical analysis of the past unless it is clearly differentiated from definitions associated solely or primarily with mood or cohesion and the group. Instead, for morale to have explanatory value, particularly in a combat environment, a functional conceptualisation is proposed, which, while not excluding the role of mood or group cohesion, focuses its meaning and relevance on motivation and the willingness to act in a manner required by an authority or institution.

Fennell constructed a multi-dimensional model of morale

By drawing on studies made across the social sciences and on primary archival evidence from the British and Commonwealth Army’s experiences in North Africa in the Second World War… It suggests that morale can best be understood as emerging from the subtle interdependencies and interrelationships of the many factors known to affect military means.

Fennell tested his methodology by developing a weekly morale score using bi-weekly censorship summaries of letters and correspondence from members of the British Second Army in the Northwest Europe Campaign in 1944-45.

These summaries proved a useful source to describe and ‘quantify’ levels of morale (through the use of a numerical morale scale). Where morale was described as ‘excellent’, it was awarded a score of 3. ‘High’ morale was given a score of 2 and ‘good’ morale was scored 1. ‘Satisfactory’ morale was given a score of 0 (neither positive or negative). Morale described as ‘severely tried’ was scored -1, while ‘low’ and ‘very low’ morale were scored -2 and -3 respectively.

He then correlated these scores with weekly statistics compiled by the British Second Army and 21^st Army Group on rates of sickness, battle exhaustion, desertion, absence without leave (AWOL) and self-inflicted wounds (SIW).

The results of the correlation analysis showed that the tabulated rates (the combined rate of sickness, battle exhaustion, desertion, AWOL and SIW) had an extremely strong negative correlation with morale (-0.949, P<0.001), i.e. when morale was high, sickness rates etc. were low, and when morale was low, sickness rates etc. were high. This is a remarkably strong relationship and shows that these factors when taken together can be used as a quantitative method to assess levels of morale, at the very least for the Army and campaign under discussion.

The results are shown on the graph above. According to Fennell,

This analysis of morale supports the conclusions of much of the recent historiography on the British Army in Northwest Europe; morale was a necessary component of combat effectiveness (morale in Second Army was broadly speaking high throughout the victorious campaign); however, morale was not a sufficient explanation for Second Army’s successes and failures on the battlefield. For example, morale would appear to have been at its highest before and during Operation ‘Market Garden’. But ‘Market Garden’ was a failure. It is likely, as John Buckley has argued, that ‘Market Garden’ was a conceptual failure rather than a morale one. Morale would also appear to have been mostly high during operations in the Low Countries and Germany, but these operations were beset with setbacks and delays.

Fennell further explored the relationship between morale and combat performance, and combat performance and strategy, in his contribution to Anthony King, ed., Frontline: Combat and Cohesion in the Twenty-First Century (Oxford: Oxford University Press, 2015). An earlier version of his chapter can be found here.

NOTES

[1] Trevor N. Dupuy, Understanding Defeat: How To Recover From Loss In Battle To Gain Victory In War (New York: Paragon House, 1990), p. 67

Posted inMethodologies

First Guards Tank Army

The map from 1976 in Shawn Woodford’s last post had two formations close to my heart, the First Tank Army (later renamed the First Guards Tank Army) and the Sixth Guards Army. The First Guards Tank Army is the formation going through the Fulda Gap. The Sixth Guards Army is to its left. Both formations played prominent roles in my Kursk book.

Also….Russia has brought back the First Guards Tank Army. It was disbanded in 1998 and re-activated in November 2014. See my previous blog post:

https://dupuyinstitute.org/2016/04/01/next-stop-berlin/

Posted inKursk
3 Comments

Is The Fulda Gap Rhyming or Echoing?

Apr 28, 2016
Shawn Woodford

Probable Axes of Attack of Warsaw Pact. Taken from Graham H. Turbiville, "Invasion in Europe--A Scenario," Army, November 1976, p. 19. — Probable Axes of Attack of Warsaw Pact. Taken from Graham H. Turbiville, “Invasion in Europe–A Scenario,” Army, November 1976, p. 19.

One of the great historical “what if’s” of recent memory was the imagined clash between the military forces of the U.S.-led North Atlantic Treaty Organization (NATO) and the Soviet-led Warsaw Pact in West Germany. This scenario – particularly a highly anticipated massive tank battle in the Fulda Gap on the north German plains – dominated the imaginations of U.S. military members, politicians, academics, strategic theorists, think tankers, and wargame nerds from the 1950s through the 1980s. Endless amounts of attention and effort were spent examining, debating, and thinking through a hypothetical war that seemed terribly real and imminent to so many at the time, but which also abruptly evaporated from the popular consciousness with the end of the Cold War in 1991. For many who came of age in the 1970s and 80s, however, merely mentioning the Fulda Gap evokes a collective nostalgic recollection of the prospect of a handful of plucky and resourceful NATO divisions battling it out with hordes of Soviet tank armies under the specter of global thermonuclear annihilation.

With this in mind, it has been rather fascinating to watch the unfolding debate over what is becoming an imagined clash between the military forces of the U.S.-led NATO and a resurgent Russia in Eastern Europe. Strategic analysts, doing what strategic analysts do, wargamed a hypothetical scenario involving a Russian invasion of the Baltic States and a NATO military intervention. The results of the wargame suggested that the current balance of forces highly favors the Russians.

So, what should we make of this? Well, the designers of the Baltic scenario wargame don’t want to scare anyone, but…

It seems unlikely that Vladimir Putin intends to turn his guns on NATO any time soon. However, the consequences should he decide to do so are severe. Probably the best outcome — if the phrase has any meaning in this context — would be something like a new Cold War, with all the implications that bears. A war with Russia would be fraught with escalatory potential from the moment the first shot was fired; and generations born outside the shadow of nuclear Armageddon would suddenly be reintroduced to fears thought long dead and buried.

Wait, a new Cold War? Are you sure? Well, for some, the logic certainly points in a specific direction:

This means that the United States and its NATO allies need to be prepared for such an eventuality — and, better yet, prepared to such a degree that Moscow will recognize that pushing on the alliance will be too costly and risky to be worth trying. The U.S. defense budget request for next year (and accompanying commitments to further deployments in Europe), which is currently being used by the relevant House and Senate committees to inform their markups of the Fiscal Year 2017 defense authorization and appropriations bills, represents a major step forward in achieving this goal. It appropriately concentrates on the threat to U.S. and allied security posed by “great power” potential adversaries. It plusses up investments in key next-generation technologies in areas like space, unmanned systems, and cyber, while also preserving funding for the modernization of the nation’s nuclear deterrent. And it allocates $3.4 billion for the European Reassurance Initiative, while committing to reestablishing the permanent presence of an armored brigade combat team in Europe to strengthen the American posture there in the face of the most serious near-term threat to U.S. and allied interests — a resurgent and revisionist Russia.

For those of us old enough to remember, Baltic States is starting to sound an awful lot like Fulda Gap.

Posted inConventional warfare

The Meaning of Military Expenditures II

Apr 26, 2016
Christopher A. Lawrence

In response to my last blog post I basically threw out a menu of possible conclusions. I received a very nicely thought out response to that post from Mike Johnson, which I felt was deserving its own blog post. His response is below (with his permission, of course):

With regard to the 20 April 2016 blog entry about military expenditures, I appreciated the list of possible conclusions and thought I would throw discussion points.

The comparison between US and other country defense spending is interesting, including the often mentioned statement that the US spends as much on defense as the next 10 countries combined. I remember, from when I was in OPNAV N80 a couple of decades ago, that our NATO allies had twice as many active duty personnel and twice as many reservists as all the US Services combined. Yet, their combined defense budgets were less than what we were spending on our people in our military personnel and reserve personnel appropriations. Of course, back then Germany and France and many others still had conscription and less is usually spent on conscripts. But, it still leads to some serious questions about how to compare defense budgets when our allies could have twice the personnel and their total budgets were less than what we spent just on our personnel. Several factors come into play. First, we have retirees being paid starting around age 40 or even earlier. I don’t know of any other country that pays retirees before the mid-50s if not the 60s. Second, the retirement and a lot of the heath care are paid by other departments in most other governments, but in the US DoD pays into these programs. Base pay for British military, by comparable grade, is actually more than in the US military; but we then add BAH and BAS on top (tax free); in the UK, the MOD subsidizes housing, but the serviceman has to pay a part. It isn’t clear whether the UK or the US serviceman of comparable grade has more “take home pay” so I don’t think the difference is that we pay our servicemen significantly more than other countries.

When it comes to Russia and China, in particular, conversions using market rates understate what is spent for most of the defense spending. I had a colleague over the years–an expert on the Soviets–who would argue that Russian Federation soldiers had to be underfed, and suffering from malnutrition, because of the amount they were paid and given for meals. I pointed out that meals certainly should use PPP and not market rates to convert and at the time the ratio between the two was about 7 (PPP converted into about 7 times as many US dollars compared with what market rates; it is less dramatic today but still to be of consideration). Anything internal to the Russian or Chinese economies should, in my opinion, use PPP for the exchange (which compares the cost of comparable items in each system). This is particularly true of personnel pay, messing, accommodations, and most of logistics. I am not sure about weapon systems. These are paid for internally, but they do have a connection to the outside world.

The way we count is different. For example, funding is appropriated to the Services and to agencies in OSD as a top line that can be obligated. How that is paid for may come from many sources including revenue collected by the Service. In European budgets, we routinely see factors like total resource and then they subtract from that number expected receipts amounting to several percent of the budget. In other words, they spend more because they can spend their revenues (such as payments made by service members for their housing) for whatever they want, but they are deducted from the top line used for comparison.

The US military does spend a lot more than any other country, despite the above factors. Part of that is what it takes to maintain 6 regional combatant commands. Part of it is maintaining a constant level of forces around the world. A war with most of our enemies is much more likely to be in their front yard and not ours. We spend a lot on R&D and a lot on keeping equipment modern. And we spend a lot on training personnel.

PPP is purchasing power parity, which is a comparison between the currencies of two countries at which each currency when exchanged for the other will purchase the same quantity of goods as it purchases at home. So, for example, when the ruble dropped from 30 to 60 to a dollar, the Soviet defense budget suddenly did not really drop in half. So a direct comparison of exchange rates between countries often de-values the defense expenditures of less developed countries, where good and services are relatively cheap. Comparing countries based upon PPP tries to adjust for that.

Posted inChina, Conventional warfare, Eastern Europe

Assessing the TNDA 1990-91 Gulf War Forecast

Apr 22, 2016
Shawn Woodford

Map of ground operations of Operation Desert Storm starting invasion February 24-28th 1991. Shows allied and Iraqi forces. Special arrows indicate the American 101st Airborne division moved by air and where the French 6st light division and American 3rd Armored Cavalry Regiment provided security. Image created by Jeff Dahl and reposted under the terms of the GNU Free Documentation License, Version 1.2.

[NOTE: This post has been edited to more accurately characterize Trevor Dupuy’s public comments on TNDA’s estimates.]

Operation DESERT STORM began on 17 January 1991 with an extended aerial campaign that lasted 38 days. Ground combat operations were initiated on 24 February and concluded after four days and four hours, with U.S. and Coalition forces having routed the Iraqi Army in Kuwait and in position to annihilate surviving elements rapidly retreating northward. According to official accounting, U.S. forces suffered 148 killed in action and 467 wounded in action, for a total of 614 combat casualties. An additional 235 were killed in non-hostile circumstances.[1]

In retrospect, TNDA’s casualty forecasts turned out to be high, with the actual number of casualties falling below the lowest +/- 50% range of estimates. Forecasts, of course, are sensitive to the initial assumptions they are based upon. In public comments made after the air campaign had started but before the ground phase began, Trevor Dupuy forthrightly stated that TNDA’s estimates were likely to be too high.[2]

In a post-mortem on the forecast in March 1991, Dupuy identified three factors which TNDA’s estimates miscalculated:

an underestimation of the effects of the air campaign on Iraqi ground forces;
the apparent surprise of Iraqi forces; and
an underestimation of the combat effectiveness superiority of U.S. and Coalition forces.[3]

There were also factors that influenced the outcome that TNDA could not have known beforehand. Its estimates were based on an Iraqi Army force of 480,000, a figure derived from open source reports available at the time. However, the U.S. Air Force’s 1993 Gulf War Air Power Survey, using intelligence collected from U.S. government sources, calculated that there were only 336,000 Iraqi Army troops in and near Kuwait in January 1991 (out of a nominal 540,000) due to unit undermanning and troops on leave. The extended air campaign led a further 25-30% to desert and inflicted about 10% casualties, leaving only 200,000-220,000 depleted and demoralized Iraqi troops to face the U.S. and Coalition ground offensive.[4].

TNDA also underestimated the number of U.S. and Coalition ground troops, crediting them with a total of 435,000, when the actual number was approximately 540,000.[5] Instead of the Iraqi Army slightly outnumbering its opponents in Kuwait as TNDA approximated (480,000 to 435,000), U.S. and Coalition forces probably possessed a manpower advantage approaching 2 to 1 or more at the outset of the ground campaign.

There were some aspects of TNDA’s estimate that were remarkably accurate. Although no one foresaw the 38-day air campaign or the four-day ground battle, TNDA did come quite close to anticipating the overall duration of 42 days.

DESERT STORM as planned and executed also bore a striking resemblance to TNDA’s recommended course of action. The opening air campaign, followed by the “left hook” into the western desert by armored and airmobile forces, coupled with holding attacks and penetration of the Iraqi lines on the Kuwaiti-Saudi border were much like a combination of TNDA’s “Colorado Springs,” “Leavenworth,” and “Siege” scenarios. The only substantive difference was the absence of border raids and the use of U.S. airborne/airmobile forces to extend the depth of the “left hook” rather than seal off Kuwait from Iraq. The extended air campaign served much the same intent as TNDA’s “Siege” concept. TNDA even anticipated the potential benefit of the unprecedented effectiveness of the DESERT STORM aerial attack.

How effective “Colorado Springs” will be in damaging and destroying the military effectiveness of the Iraqi ground forces is debatable….On the other hand, the circumstances of this operation are different from past efforts of air forces to “go it alone.” The terrain and vegetation (or lack thereof) favor air attacks to an exceptional degree. And the air forces will be operating with weapons of hitherto unsuspected accuracy and effectiveness against fortified targets. Given these new circumstances, and considering recent historical examples in the 1967 and 1973 Arab-Israeli Wars, the possibility that airpower alone can cause such devastation, destruction, and demoralization as to destroy totally the effectiveness of the Iraqi ground forces cannot be ignored. [6]

In actuality, the U.S. Central Command air planners specifically targeted Saddam’s government in the belief that air power alone might force regime change, which would lead the Iraqi Army to withdraw from Kuwait. Another objective of the air campaign was to reduce the effectiveness of the Iraqi Army by 50% before initiating the ground offensive.[7]

Dupuy and his TNDA colleagues did anticipate that a combination of extended siege-like assault on Iraqi forces in Kuwait could enable the execution of a quick ground attack coup de grace with minimized losses.

The potential of success for such an operation, in the wake of both air and ground efforts made to reduce the Iraqi capacity for offensive along the lines of either Operation “Leavenworth’…or the more elaborate and somewhat riskier “RazzleDazzle”…would produce significant results within a short time. In such a case, losses for these follow-on ground operations would almost certainly be lower than if they had been launched shortly after the war began.[8]

Unfortunately, TNDA did not hazard a casualty estimate for a potential “Colorado Springs/ Siege/Leavenworth/RazzleDazzle” combination scenario, a forecast for which might very well have come closer to the actual outcome.

Dupuy took quite a risk in making such a prominently public forecast, opening his theories and methodology to criticism and judgement. In my next post, I will examine how it stacked up with other predictions and estimates made at the time.

NOTES

[1] Nese F. DeBruyne and Anne Leland, “American War and Military Operations Casualties: Lists and Statistics,” (Washington, D.C.: Congressional Research Service, 2 January 2015), pp. 3, 11

[2] Christopher A. Lawrence, America’s Modern Wars: Understanding Iraq, Afghanistan and Vietnam (Philadelphia, PA: Casemate, 2015) p. 52

[3] Trevor N. Dupuy, “Report on Pre-War Forecasting For Information and Comment: Accuracy of Pre-Kuwait War Forecasts by T.N. Dupuy and HERO-TNDA,” 18 March, 1991. This was published in the April 1991 edition of the online wargaming “fanzine” Simulations Online. The post-mortem also included a revised TNDM casualty calculation for U.S. forces in the ground war phase, using the revised assumptions, of 70 killed and 417 wounded, for a total of 496 casualties. The details used in this revised calculation were not provided in the post-mortem report, so its veracity cannot be currently assessed.

[4] Thomas A. Keaney and Eliot A. Cohen, Gulf War Airpower Survey Summary Report (Washington, D.C.: U.S. Department of the Air Force, 1993), pp. 7, 9-10, 107

[5] Keaney and Cohen, Gulf War Airpower Survey Summary Report, p. 7

[6] Trevor N. Dupuy, Curt Johnson, David L. Bongard, Arnold C. Dupuy, How To Defeat Saddam Hussein: Scenarios and Strategies for the Gulf War (New York: Warner Books, 1991), p. 58

[7] Gulf War Airpower Survey, Vol. I: Planning and Command and Control, Pt. 1 (Washington, D.C.: U.S. Department of the Air Force, 1993), pp. 157, 162-165

[8] Dupuy, et al, How To Defeat Saddam Hussein, p. 114

Posted inCasualty estimation, Methodologies

The Meaning of Military Expenditures

Apr 20, 2016
Christopher A. Lawrence

My last post was a data dump without a conclusion. I probably need to add one, although I usually avoid providing opinions. There is no shortage of opinions in the American blogosphere and political landscape. I think a little less opinion and a little more data has value. If you want opinions, there are plenty of services out there who specialize in that, and from any perspective and viewpoint that you like.

From the previous Military Expenditures posting one could draw a number of conclusions:

That the American allies in NATO and Asia are not carrying their weight…or…
The threat from Russia and China is grossly overstated
1. Russia’s defense expenditures are $51.6 billion while NATO (not including the U.S.) is around $300 billion.
2. China’s defense expenditures are $145.8 billion (or is it $215 billion) while Japan, South Korea and Taiwan’s combined are $85 billion.
3. The U.S. is spending $597.5 billion.
4. …or….
The U.S. is spending too much on defense.
1. Beware of the “military-industrial complex?”
2. …or….
This is the cost of being the world leader (3.3% of GDP on defense)….or…
The higher U.S. defense expenditures are certainly justified because:
1. We are covering against Russia ($51.6 billion)
2. We are covering against China ($145.8 billion)
3. Then there is ISIL….and….
4. Iraq, Afghanistan and Somalia
5. We have other missions, like nuclear deterrence, that adds to our cost.
6. We need to continue to develop and maintain our technological edge, and that costs money.
7. …or….
The U.S. is spending too much on the wrong things…or….
Maybe defense budget is not really a good measurement of military power….or…
Maybe Russia and China are getting more “bang for the buck” then the U.S. and its western allies….or…
Whatever else I forgot to mention….or….
Some or all of the above.

Anyhow, one could interpret the figures in my previous post a number of different ways depending on their own political leanings and biases.

And…..I still didn’t really add a conclusion.

Posted inChina, Conventional warfare, Eastern Europe

Forecasting the 1990-1991 Gulf War

In my last post on the subject of prediction in security studies, I mentioned that TDI has a public forecasting track record. The first of these, and possibly the most well know, involves the 1990-1991 Gulf War.

On 13 December 1990, Trevor N. Dupuy, President of Trevor N. Dupuy & Associates (TNDA), testified before the House Armed Services Committee on the topic of the looming military confrontation between the military forces of the United States and United Nations Coalition allies and those of Iraq.[1] He offered TNDA’s assessment of the potential character of the forthcoming conflict, as well as estimates of the likely casualties that both sides would suffer. Dupuy published a refined and expanded version of TNDA’s analysis in January 1991.[2]

Based on a methodology derived from Dupuy’s combat models and synthesized data on historical personnel and material combat attrition, TNDA forecast a successful U.S. and Coalition air/ground offensive campaign into Kuwait.[3] Using publicly available sources, TNDA calculated that Iraqi forces in Iraq numbered 480,000, U.S. forces at 310,000, and Coalition allies at 125,000.

The estimated number of casualties varied based on a campaign anticipated to last from 10 to 40 days depending on five projected alternate operational scenarios:

Operation “Colorado Springs.” A 10-day air campaign aimed at achieving air superiority and attacking Iraq’s ground forces and war-making infrastructure. While TNDA believed an air campaign would proceed any ground offensive option, Dupuy suggested that it could potentially force an Iraqi surrender without the need for a land attack.
Operation “Bulldozer.” A frontal assault on Iraqi forces in Kuwait, lasting 10-20 days.
Operation “Leavenworth.” A double envelopment of Iraqi forces in Kuwait using an armored turning force in the west and a U.S. Marine amphibious landing in the east.
Operation “RazzleDazzle.” Similar to “Leavenworth,” but combined with an assault along the Iraq-Kuwait border by airborne/airmobile forces for a triple envelopment to encircle all Iraqi forces in Kuwait.
Operation “Siege.” A combination of an extended Operation “Colorado Springs” and ground force raids on all of Iraq’s borders. After 10-20 days, one of the three ground attack options (“Bulldozer,” “Leavenworth,” or “RazzleDazzle”) would be initiated to conclude the war.

Based on these assumptions, TNDA produced a range of casualty predictions for U.S. forces that TNDA asserted would probably be accurate to within +/- 50%. These ranged from a low of 380 for a 10-day “Colorado Springs” air-only campaign, to a top-end calculation of 16,645 for a 10-day “Colorado Springs” followed by a 20-day “Bulldozer” frontal assault.

TNDA’s Projection of Likely U.S. Casualties

Scenario	Duration	Killed	Wounded	Total	+/-50%
Colorado Springs	10-40 days	190-315	190-315	380-630	—
Bulldozer*	10-20 days	1,858-2,068	8,332-9,222	10,190-11,290	5,335-16,645
Leavenworth*	10-20 days	1,454-1,664	6,309-7,199	7,763-8,863	4,122-12,995
RazzleDazzle*	10-20 days	1,319-1,529	5,534-6,524	6,853-8,053	3,717-11,790
Siege*	10-30 days	564-1,339	1,858-5,470	2,422-6,809	1,451-10,479

* Figures include air casualties

Based on these calculations, TNDA recommended the following course of action:

If the above ﬁgures are close to accurate (and history tells us they should should be), then the proper solution is to begin the war with the air campaign of Operation “Colorado Springs.” If this should result in an Iraqi surrender, so much the better. If not, then after about ten days of “Colorado Springs,“ to continue the air campaign for about ten more days while initiating Operation “Siege.” If this does not bring about an Iraqi surrender, the ground campaign should be concluded with Operation “RazzleDazzle.” If this has not brought about an Iraqi surrender, then an advance should be made through the desert to destroy any resisting Iraqi forces and to occupy Baghdad if necessary.[4]

In my next post, I will assess the accuracy of TNDA’s forecast and how it stacked up against others made at the time.

Notes

[1] Armed Services Committee, U.S. House of Representatives, Testimony of Col. T. N. Dupuy, USA, Ret. (Washington D.C.: 13 December 1990)

[2] Trevor N. Dupuy, Curt Johnson, David L. Bongard, Arnold C. Dupuy, If War Comes, How To Defeat Saddam Hussein (McLean, VA.: HERO Books, 1991); subsequently republished as How To Defeat Saddam Hussein: Scenarios and Strategies for the Gulf War (New York: Warner Books, 1991).

[3] These are the Quantified Judgement Model (QJM) and Tactical Numerical Deterministic Model (TNDM). Dupuy’s methodological approach and his first cut on a Gulf War estimate are described in Chapter 7 of Trevor N. Dupuy, Attrition: Forecasting Battle Casualties and Equipment Losses in Modern War (McLean, VA.: HERO Books, 1990).

[4] Dupuy, et al, How To Defeat Saddam Hussein, 126

Posted inMethodologies
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