Afghan National Army (ANA) soldiers with the 4th Tolay, 6th Kandak, 6th Brigade, 215th Corps and U.S. Marines with the Tolay Liaison Team (TLT), Mobile Strike Force (MSF), Security Force Assistance Advisory Team (SFAAT), conduct a preparatory security patrol near the outside perimeter of Camp Leatherneck, Helmand province, Afghanistan, May 17, 2014. ANA forces advised by members of the TLT, conduct security patrols in order establish a strong military presence, decreases the enemy’s opportunity to observe coalition operations, and place improvised explosive devices along the perimeter. (Official U.S. Marine Corps photo by Staff Sgt. Jonathan T. Spencer/RELEASED)