I applied in-person. The process took 2+ months. I interviewed at US Army (Fort Leonard Wood, MO) in Jun 2011
Interview
If you've never committed a federal crime and you have a GED, you can join the US Army. Basic training is basically the interview process. Not that difficult, but if your motivations for joining the Army are superficial, you probably won't make it.
Interview questions [1]
Question 1
The interviewer will ask you if you've ever done drugs.