I subscribe what FinnMcScrap said, service is no joke and not to be taken lightly and you must be up an ready for whatever is going on, i served myself 4 years in the army in my country, and i can tell you that things can turn upside down in no time an you'll have to be ready for. Said this, i can tell you if you have the right mindset, if you're not sure (as happened to myself) go for it and discover if you're up to, in my case it worked. And if you feel you're in the right place, do not leave as i did. You will regret it, i assure you.