You couldn't be further from the truth. What a disgusting and ignorant remark.
Here's what I know about it, which isn't much, but oh well:
You join. Take the ASVAB. Choose your MOS (depending on what the Army wants to give you, usually). Go to basic training then AIT. Drill with your unit, which is usually close to where you live, until you get your orders to deploy, or you get co-opted with another unit.
Have Fun, weekend warrior

jk
Anything else you want to know, ask. There are people on this board who could help you out better, which i'm sure they will.