7/23/2012 - Col. Johnny Roscoe (right), 15th Wing commander, Brig. Gen. Michael Hood (center), Rim of the Pacific military exercise Combined Forces Air Component Commander, and Rear Adm. Ron Lloyd, RIMPAC Deputy Commander Combined Task Force, converse while waiting for His Excellency the Right Honourable David Johnston, Governor General and Commander-in-Chief of Canada, to arrive at Joint Base Pearl Harbor-Hickam, Hawaii, via aircraft July 19. RIMPAC is the world's largest maritime military exercise. (U.S. Air Force photo by Capt. Ben Sakrisson)

7/23/2012 - A Canadian aircraft carrying His Excellency the Right Honourable David Johnston, Governor General and Commander-in-Chief of Canada, arrives at Joint Base Pearl Harbor-Hickam, Hawaii, for a visit during the Rim of the Pacific military exercise July 19. RIMPAC is the world's largest maritime military exercise. (U.S. Air Force photo by Capt. Ben Sakrisson)

7/23/2012 - Col. Johnny Roscoe (right), 15th Wing commander, converses with the Right Honourable David Johnston, Governor General and Commander-in-Chief of Canada, upon his arrival at Joint Base Pearl Harbor-Hickam, Hawaii, for a visit during the Rim of the Pacific military exercise July 19. RIMPAC is the world's largest maritime military exercise. (U.S. Air Force photo by Capt. Ben Sakrisson)

7/23/2012 - Col. Johnny Roscoe (left), 15th Wing commander, and Rear Adm. Ron Lloyd (right), Rim of the Pacific military exercise Deputy Commander Combined Task Force, converse with the Right Honourable David Johnston, Governor General and Commander-in-Chief of Canada, upon his arrival at Joint Base Pearl Harbor-Hickam, Hawaii, for a visit during the Rim of the Pacific military exercise July 19. RIMPAC is the world's largest maritime military exercise. (U.S. Air Force photo by Capt. Ben Sakrisson)

7/23/2012 - Col. Johnny Roscoe (left), 15th Wing commander, converses with Brig. Gen. Michael Hood, Rim of the Pacific military exercise Combined Forces Air Component Commander, following the arrival of the Right Honourable David Johnston, Governor General and Commander-in-Chief of Canada, at Joint Base Pearl Harbor-Hickam, Hawaii, for a visit during RIMPAC July 19. RIMPAC is the world's largest maritime military exercise. (U.S. Air Force photo by Capt. Ben Sakrisson)