Hey Giz, correct me if I'm wrong I only lived in the States for like 4yrs, but just to clear up your earlier comment
We do not CHOOSE to be in our milliaty (well, a lot of us), we have a "draft" where if we do not go, we are forced to go to jail...
In the US once you turn 18 you have to sign up saying that if the country ever needs you to join (IE: WW3) then you must go, but otherwise you don't need to serve. Correct ? Their way of getting around conscription, seeing as that is political suicide.