I don’t know whether you want to do archival research for your thesis or even if relevant material has yet been deposited there, but I have made one visit to the National Archives at College Park and a great many of the visitors were in uniform. Since you are at Maryland it wouldn’t be too much of a hike for you. The experience would make you feel like a real historian, in any case.
I visited the National Museum of the Marine Corps in December. Again, a good experience regardless of how topical it might or might not be to your research project.
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