The same logic that tells them that 1 + 1 = POTATO.
"They are in front of us, behind us, and we are flanked on both sides by an enemy that outnumbers us 29:1. They can't get away from us now!"
- Lewis B. "Chesty" Puller, USMC
But Dummies, ya know, they don't sport a lot of Marines in their ranks so it would seem they are pretty much SOL.