U.S. Marines with Charlie Company, 1st Battalion, 8th Marine Regiment, Regimental Combat Team 6 communicate with the crew of an M1 Abrams Tank Commander with 1st Tank Battailion, I Marine Expeditionary Force (Forward) during a patrol in Payawak village, Helmand province, Afghanistan, April 20, 2012. Marines conducted the patrol in search of suspected enemy fighters. (U.S. Marine Corps photo by Cpl. Andrew J. Good/Released)