Don't make excuses for being lazy, a quick search would have found a lot of replies on this topic.
Anyways,
If you want to join the US Military as a Canadian citisen, its impossible unless you have atleast a green card, and to get a green card you need to be sponsored by an immediate family member(that either holds a US green card or citisenship) or by a US Company(no the US Military will not sponser you). I know this because I looked into joining the US Army awhile ago.