U.S. Marine Corps Lance Cpl. Sienna De Santis and U.S. Navy Petty Officer 3rd Class Heidi Dean, both with Female Engagement Team, India Company, 3rd Battalion, 5th Marine Regiment, Regimental Combat Team 2, greet children during a patrol in Sangin Valley, Afghanistan, on Oct. 29, 2010. Marines conducted security patrols to decrease insurgent activity and gain the trust of the Afghan civilians. The battalion was one of the combat elements of Regimental Combat Team 2, whose mission was to conduct counterinsurgency operations with the International Security Assistance Force.