GUARD GEAR Two U.S. Army soldiers keep an eye out while performing guard duty on Combat Post Pirtle King, Afghanistan, July 7, 2009. The main focus of the outpost is to maintain control over the Tsunnel valley, an area formally used as a high traffic route for Al Queda.The soldiers are assigned to Troop C, 3rd Squadron, 61st Cavalry Regiment. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 061167-V-SEI23-792.jpg Photo Gallery