Soldiers with 2nd Battalion, 506th Infantry Regiment, 4th Brigade Combat Team, 101st Airborne Division (Air Assault), lower the regimental colors and the U.S. flag on the last day at Forward Operating Base Salerno, Khowst province, Afghanistan, Oct. 31. FOB Salerno was officially transferred to the Afghan National Security Forces after 10 years of coalition control signifying the improved security situation in the province of Khowst and the ANSF's increased capacity and capability.