U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, talks to Chilean Army Lt. Gen. Alfredo Ewing, director of the National Defense Staff, in Santiago, Chile, March 3, 2009. U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, talks to Chilean Army Lt. Gen. Alfredo Ewing, director of the National Defense Staff, in Santiago, Chile, March 3, 2009. SHARE: Download: Full Size (2.87 MB) Tags: Photo Essays Credit: VIRIN: 733640-A-SCY00-812.jpg Photo Gallery