Sgt. Calvin Nash waits for the dust to clear U.S. Marine Corps Sgt. Calvin Nash waits for the dust to clear after a controlled detonation during a patrol in Sangin, Afghanistan, on Sept. 8, 2011. The Marines are using the explosives to destroy abandoned compounds that block views from security posts. Nash is a squad leader with 3rd Platoon, Alpha Company, 1st Battalion, 5th Marines, Regimental Combat Team 8. SHARE IMAGE: Download Image: Full Size (0.04 MB) Photo By: VIRIN: 115298-D-NCW43-290.jpg Photo Gallery