SPC Karoglou, a telephone operator assigned to the California State Military Reserves, 2nd Battalion, Alpha Company challenges a vehicle that contains an armed suspect, at Moffett Federal Airfield, Calif., March 2, 2013. Karoglou, is being trained by Senior Airman Roberto Alvarez of the 129th Security Forces Squadron on vehicle challenge procedures. This group of CSMR soldiers are training to provide support to the Air National Guard during riots, natural disasters and deployments. (Air National Guard photo by Staff Sgt. Kim E. Ramirez)