CAMP AL QAIM, IRAQ: Walk into the battalion headquarters of the 3rd Battalion, 6th Marine Regiment at Camp Al Qaim, and three things will immediately catch your eye. The first is the tribute to the Marines of the 3/6 killed in Iraq. The memorial consists of rifle bayonet-point into the ground, a Marines’ helmet resting on the butt stock, a pair of boots, and the dog tags of five of the members of 3/6 killed in Iraq. The second is unit crest of the 3/6, with the cryptic word “Teufelhunden” inscribed. This is the name the Germans gave the battalion…