Here is a marine's response to this same question being asked on yahoo.

[link to answers.yahoo.com]

pocket full of sunshine:
Do men turn gay in the army after only being around men?
How often does this happen?
Do guys in the army tend to do stuff with each other cuz they can't get any? like in iraq

Honest Abe:
Anyway, to be honest with you. I don't know about the Army however I never did have a Homo in my unit to deal with and if we did he wouldn't be around long. Most times we masturbate about ten times a day to keep our minds busy or borrow a friends girlfriends pic if ours is a dog.
I am a Marine and don't deal with homos but I see many Army guys that you just know however its accepted, They just get their booty call when people are sleeping and the go to the back off a Hum Vee or Tent. I guess the Army do as the Romans do.