Does this count, in 1965 I was in College Air Force ROTC!!!
This was ROTC Parade Day open to the public, but was scary for me at the time because my friend, on the left, dressed as an Italian artillery captain. No, he was not Italian military, but ran travel agency in town and spoke fluent Italian. He was Armenian heritage so also looked the part as well. He collected Italian military, thus the uniform. I was so afraid it was going to be discovered and I'd be in a whole heap of trouble!!! Fortunately, the brass felt something was amiss and just stayed clear of him. Oh, and an Italian captain at the time wore three stars on his shoulder!!!
Terry