True story: I was in the "regular army" and had to train the national guard in that state. The national guard was also called the "nasty girls".
GI rivalry.
Jar head = marine.
Coast guard = laughing my fuckin ass off.
Navy = fags (why on a ship with cocks?)
Air force = all the fuckin respect possible. Fly boys. Also the chief warrant officers which are apache pilots. (army)