DESERT WATCH Thor, a military working dog assigned to Company K, 3rd Battalion, 1st Marine Regiment, with his handler scans the desert on Combat Center Range 220, Marine Corps Base Camp Pendleton, Calif., Feb. 2, 2010. The battalion is in pre-deployment training. SHARE IMAGE: Download Image: Full Size (0.06 MB) Photo By: VIRIN: 437845-O-MGH88-257.jpg Photo Gallery