teen female escapes and helps allies fight east bloc and become a 3 star general, meadl of honor
Sounds like "Kelly" by Morgan.
*Synopsis: G.I. rescues naked teenager from Russian KGB. She in turn saves his life and goes on to become youngest general and most decorated veteran in history.
https://storiesonline.net/s/35465/kelly
I run very hot and cold on it. I start to reread it and I enjoy it but the repetition in it kills it for me before the end. Your mileage may vary.
limab