Dock landing ship USS Pearl Harbor (LSD 52) and ships from Canada, Chile, Columbia, Ecuador, Honduras, Panama, Peru and Nicaragua join together to participate in PANAMAX 2007, a joint and multi-national training exercise tailored to the defense of the Panama Canal in the Pacific Ocean, Aug. 31. Civil and military forces from 19 nations exercised ground, sea and air responses providing effective training to increase multi-national force interoperability.