IQUIQUE, Chile -- Tech. Sgt. BJ Kelley, 161st Air Refueling Wing crew chief, talks with a Fuerza Aerea De Chile maintainer before launching a KC-135 during SALITRE, a multinational exercise focused on interoperability between Chile, the United States, Argentina, Brazil and France. (U.S. Air Force photo/Tech. Sgt. Eric Petosky)