just just What records that are military NARA have actually?
The nationwide Archives holds Federal military solution documents through the Revolutionary War to 1912 within the National Archives Building in Washington, D.C. See information on holdings.
Army documents from WWI – present are held into the nationwide Military Personnel Records Center (NPRC), in St. Louis, Missouri, See information on holdings.
The nationwide Archives will not hold state militia documents. For those documents, you need to contact the State that is appropriate Archives.