U.S. Navy Petty Officer 1st Class Justin Lewis, left, and Petty Officer 3rd Class David Ikuta, right, explosive ordnance disposal technicians assigned to Combined Joint Task Force - Horn of Africa, pose with Sudan People's Liberation Army, or SPLA, Maj. John Mabior Arok, a graduate from the Humanitarian Mine Action Explosive Ordnance Disposal Train-the-Trainer course at the SPLA Engineer Headquarters in Juba, South Sudan, Sept. 7, 2012. Arok will soon be traveling to Lackland Air Force Base, Texas, to receive advanced demining training.