DAY'S END U.S. Marine Corps Lance Cpl. Timothy Mcguire walks with his military working dog after completing a detection exercise on Forward Operating Base Geronimo in Afghanistan's Helmand province, Aug. 16, 2012. Mcguire, a military working dog handler, is assigned to Lima Company, 3rd Battalion, 8th Marine Regiment, Regimental Combat Team 6. The handlers conducted the training to sharpen the skills of their dogs in locating improvised explosive devices on the battlefield. SHARE IMAGE: Download Image: Full Size (0.04 MB) Photo By: VIRIN: 513146-I-OQR82-197.jpg Photo Gallery