Sangin, Helmand, Afghanistan - Marines with 1st Battalion, 7th Marine Regiment, patrol through a field in Sangin, Afghanistan, April 8, 2012. The battalion retrograded from Sangin, May 5, 2014, and turned over security responsibility of the area to the Afghan National Army. The infantrymen of 1st Bn., 7th Marines, were the final Marines to occupy FOB Sabit Qadam and the surrounding area in Sangin District.