ROK Army tour
Staff Sgt. David Wessell (right), 51st Security Forces Squadron air base defense NCO, shows Capt. Kwang-Sik Kim, of the Republic of Korea Army’s 169th Infantry Regiment, the inside of a defensive fighting position Sept. 6, 2012. ROK Army representatives toured Osan's DFPs and met with leadership from the 51st SFS to discuss air base defense procedures. (U.S. Air Force photo/Airman 1st Class Alexis Siekert)