Of course, there were problems with the U.S. Army record keeping in the Gulf War (1991). There were serious problems with the U.S. Army record keeping in the Vietnam War (1965-1973), so not surprising, the problem had not been corrected, and the same problems existed 20 years later. In the Vietnam War, the 82nd Airborne Division pretty much threw away most of their records. According to Don Hakenson, Director, Center of Unit Records Research, Records Management and Declassification Agency; in the Gulf War, 86% or 87% of the battalion daily journals were not preserved (see War by Numbers, page 146).
This became a big issue when the “Gulf War Syndrome” became an issue. People became suspicious that U.S. soldiers had become exposed to hazardous materials or chemical weapons. Yet, when the Veterans Administration and others tried to figure out where the units were at the time, they found that the records no longer existed for many these units. In many cases, they could not determine where the unit or the people were during operations. Many of the records had simply been thrown out.
The Gulf War Syndrome was not a small issue. It has been estimated that 250,000 U.S. veterans were afflicted. It was a case where record keeping briefly became a major issue. Wikipedia article: https://en.wikipedia.org/wiki/Gulf_War_syndrome
Since the 1960s, there has been serious gaps in U.S. record keeping. There still was in 1998 when we conducted a survey of the subject for the U.S. Army. We have conducted no other surveys since then, but gather that corrective action has been undertaken.