Forty-two ships and submarines representing 15 partner nations maneuver at a close formation during the Rim of the Pacific, or RIMPAC, exercise Friday, July 25. The exercise, which originated in 1971 and has been held every two years since 1974, is the world's largest international maritime exercise, according to the U.S. Navy's Pacific Fleet. This year, 55 vessels, 200 aircraft and 25,000 personnel participated. The 37-day exercise ends Friday.
RIMPAC: The world's largest naval exercise —
Forty-two ships and submarines representing 15 partner nations maneuver at a close formation during the Rim of the Pacific, or RIMPAC, exercise Friday, July 25. The exercise, which originated in 1971 and has been held every two years since 1974, is the world's largest international maritime exercise, according to the U.S. Navy's Pacific Fleet. This year, 55 vessels, 200 aircraft and 25,000 personnel participated. The 37-day exercise ends Friday.
Mass Communication Specialist 1st Class Shannon Renfroe/US NAVY
Explosive ordnance disposal technicians from the United States and South Korea perform an underwater exercise on July 23.
RIMPAC: The world's largest naval exercise —
Explosive ordnance disposal technicians from the United States and South Korea perform an underwater exercise on July 23.
Mass Communication Specialist 2nd Class Taylor Smith/US NAVY
A half-scale <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2014%2F07%2F16%2Ftech%2Finnovation%2Fmarines-amphibious-vehicle%2Findex.html" target="_blank">Ultra Heavy-lift Amphibious Connector prototype</a>, created by Navatek Ltd. and the Office of Naval Research, departs the amphibious dock landing ship USS Rushmore on July 11. The UHAC was unveiled during RIMPAC exercises.
RIMPAC: The world's largest naval exercise —
A half-scale Ultra Heavy-lift Amphibious Connector prototype, created by Navatek Ltd. and the Office of Naval Research, departs the amphibious dock landing ship USS Rushmore on July 11. The UHAC was unveiled during RIMPAC exercises.
Mass Communication Specialist 2nd Class Amanda R. Gray/US NAVY
Sailors transport a New Zealand sailor from a Sea Hawk helicopter during a medical evacuation training exercise on July 18.
RIMPAC: The world's largest naval exercise —
Sailors transport a New Zealand sailor from a Sea Hawk helicopter during a medical evacuation training exercise on July 18.
Mass Communication Specialist Seaman Class Amanda Chavez/US NAVY
Airman Arthur Bowlby peers through his sight during an M16 rifle qualification aboard the aircraft carrier USS Ronald Reagan on July 18.
RIMPAC: The world's largest naval exercise —
Airman Arthur Bowlby peers through his sight during an M16 rifle qualification aboard the aircraft carrier USS Ronald Reagan on July 18.
Mass Communication Specialist 2nd Class Jacob Estes/US NAVY
Japanese soldiers participate in an amphibious assault exercise July 1 at Pyramid Rock Beach, Hawaii.
RIMPAC: The world's largest naval exercise —
Japanese soldiers participate in an amphibious assault exercise July 1 at Pyramid Rock Beach, Hawaii.
Cpl. Matthew J. Bragg/usmc
A Japanese soldier sprints to take a position on Pyramid Rock Beach during the July 1 training exercise.
RIMPAC: The world's largest naval exercise —
A Japanese soldier sprints to take a position on Pyramid Rock Beach during the July 1 training exercise.
Cpl. Matthew J. Bragg/usmc
U.S. Navy divers from the Mobile Diving and Salvage Unit assist U.S. Coast Guard divers during an exercise on July 9.
RIMPAC: The world's largest naval exercise —
U.S. Navy divers from the Mobile Diving and Salvage Unit assist U.S. Coast Guard divers during an exercise on July 9.
Mass Communication Specialist 2nd Class Taylor Smith/us navy
An American F-16 jet moves into position beneath a KC-135 "Stratotanker" for a refueling mission July 23, in the airspace west of Hawaii.
RIMPAC: The world's largest naval exercise —
An American F-16 jet moves into position beneath a KC-135 "Stratotanker" for a refueling mission July 23, in the airspace west of Hawaii.
BRUCE OMORI/EPA/LANDOV
Members of the militaries of New Zealand, the Netherlands, Canada, Japan, Australia and Chile recover their boats into the well deck of the amphibious transport dock USS Anchorage after conducting night dive exercises off the coast of San Diego on July 18.
RIMPAC: The world's largest naval exercise —
Members of the militaries of New Zealand, the Netherlands, Canada, Japan, Australia and Chile recover their boats into the well deck of the amphibious transport dock USS Anchorage after conducting night dive exercises off the coast of San Diego on July 18.
Mass Communication Specialist 2nd Class Joshua Scott/us navy
People walk past a U.S. Marine Corps Osprey aircraft aboard the amphibious assault ship USS Peleliu on July 14.
RIMPAC: The world's largest naval exercise —
People walk past a U.S. Marine Corps Osprey aircraft aboard the amphibious assault ship USS Peleliu on July 14.
Mass Communication Specialist 3rd Class Katarzyna Kobiljak/us navy
A Landing Craft Air Cushion departs the well deck of the USS Rushmore during an exercise on July 12.
RIMPAC: The world's largest naval exercise —
A Landing Craft Air Cushion departs the well deck of the USS Rushmore during an exercise on July 12.
Mass Communication Specialist 2nd Class Amanda R. Gray/US navy
Airman Antony Hopson cleans the cockpit of an F/A-18 Super Hornet aboard the USS Ronald Reagan on July 26.
RIMPAC: The world's largest naval exercise —
Airman Antony Hopson cleans the cockpit of an F/A-18 Super Hornet aboard the USS Ronald Reagan on July 26.
Mass Communication Specialist Seaman Cody Hendrix/us navy
An amphibious assault vehicle approaches the USS Rushmore after small boat operations exercises on July 8.
RIMPAC: The world's largest naval exercise —
An amphibious assault vehicle approaches the USS Rushmore after small boat operations exercises on July 8.
Mass Communication Specialist 2nd Class Amanda R. Gray/us navy