KOWALL WELCOME U.S. Defense Secretary Robert M. Gates speaks with U.S. Army 1st Lt. Mike Viti, an International Security Assistance Force member and platoon leader, on Combat Outpost Kowall in Afghanistan, March 8, 2011. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 922497-Q-WEK56-216.jpg Photo Gallery