U.S. Army Gen. John F. Campbell, commander, International Security Assistance Force and U.S. Forces-Afghanistan, greets NATO Secretary General Jens Stoltenberg on the steps of ISAF headquarters, Nov. 5, in Kabul, Afghanistan. Stoltenberg, on his first trip to ISAF headquarters since his appointment as Secretary General of NATO, met with Campbell and discussed the ongoing transition from the ISAF mission which ends in December, 2014 to the Resolute Support mission which begins in January, 2015. (Photo by U.S. Army Staff Sgt. Richard D. Sherba, COMISAF photographer)