Staff Sgt. George Munoz, 28th Munitions Squadron weapon systems craftsman, hugs his two sons Dylan, 5, and Eric, 2, at the Robbinsdale Elementary School library in Rapid City, S.D., Feb. 17, 2012. The whole kindergarten class was in attendance to see Munoz surprise his son, who he had not seen in a year due to his assignment to Kunsan Air Base, South Korea. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)