If I WAS wearing my tinfoil hat, I'd say it's a pretty lucky coincidence that all the local boys in the guard are out of the country and it's the non-local troops that would be asked to do the nasty. It's easier to put down unrest if it's not your cousin Earl being the dissident. Hmm, the troops are also pretty used to having indigenous terrorists being the enemy.
But, since I'm just wearing my cotton beanie today, I won't think things like that laugh