Info about the (current) military and war? Easy 10 points for best/most detailed answer!?

I am writing a story centering around a man who is in the army and is caught and sent to a POW camp. I don't really need to know anything about POW and such, but if anyone had any info about the military in general. Like how long does one go through basic training before they are sent overseas? While overseas, what are the basic duties involved with being a soldier? Like would anyone happen to know what they do on a daily basis? Any info about the military and war would be appreciated. And I am Canadian, but I would like an American perspective, seeing as they're more invested in the war.