In this photo provided by ISAF Regional Command South, Marine Corps Gen. John R. Allen, ISAF commander, is escorted by Army Maj. Gen. James L. Terry, RC-South and 10th Mountain Division (Light) commander, after arriving at Kandahar Airfield, Sept. 12, 2011. Allen was changing planes to attend a conference with Terry, as well as other U.S. and Afghan leaders, to discuss reintegration.