Get everything in writing.
Any promises that are made are worthless unless they're in writing, and even then they're half-worthless. Speaking from nephew's experience as same cannon fodder in Afghanistan. His 4 years of service to Uncle Sam have somewhere around 12 months remaining, give or take. He can't wait to GTFO.
-Mike
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
- Benjamin Franklin, 1759 Historical Review of Pennsylvania