Obama visits Osan AB
Col. Patrick McKenzie, the 51st Fighter Wing commander, shakes hands with President Barack Obama at Osan Air Base, South Korea, March 25, 2012, during introductions by Gen. James Thurman, the U.S. Forces Korea commander. The president transited the base on his way to the 2012 Nuclear Security Summit in Seoul, South Korea. (U.S. Air Force photo/Senior Airman Adam Grant)