I hear that alot of the guys use Crossfit over there to keep in shape. The Marines also use its elements in basic. This is from Crossfit.com.
The army is using crossfit also.
I have been doing crossfit for 2 years now. It’s a great training methodolgy providing you have good trainers. The owner of our gym is Recon vet. He’s in Irag now on contract and has a makeshift gyn overthere now...
I’m at a fitness level now that is better than when I was 25 and that was 20 years ago!. It’s not the be all, end all of fitness methodolgies but it’s effective. I’ve seen many an ego crushed in the middle of a workout.