I'm afraid this requires more context. What types of records? What sort of happening are you asking about?
Hi Dale, are you referring to personnel/service records? Most were destroyed in a fire at the Archives in 1973 (see https://www.archives.gov/personnel-records-center/fire-1973 for more information). Other records, such as operational, morning, and after action reports, are still available, either at one of the Archive facilities or at some military libraries. Hope this is of some help. joan
Like J. Andrew said depending on the branch of service their was a fire in the early 70s that destroyed about 80 percent of military records for the Army and Air Force. However, their are always alternative records such as final pay, morning reports, and unit rosters.
Hope this helps,
Dear Mr. Crowder,
Thank you for posting your request on History Hub!
On July 12th 1973, a fire broke out at the NPRC Military Personnel Records building on Page Blvd in St. Louis, Missouri. The blaze was so intense that firefighting companies from all around the region were called in to combat the fire and it took nearly four days to officially declare the fire extinguished. The cause of the fire was never revealed but it inflicted significant damage.
Between 16-18 million records were affected; the bulk of which were Army and Air Force records between 1912 and 1964. Over 6 million have been recovered and preservation efforts at the NPRC are working to reconstruct the damaged records in order to provide service information for veterans.
For more information about the 1973 fire, please visit the NARA webpage at The 1973 Fire, National Personnel Records Center.
We hope this is helpful.