If you cannot swim, then your not gonna be in any spec ops unit.
The only thing about your background that matters to the military is how it helps you get a good score on your ASVAB (and which jobs are available from that). Start shopping recruiters and see which branch fits you best.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.