POHAKULOA TRAINING AREA, Hawaii - Australian soldiers assigned to 5th Royal Australian Regiment fire an 84 mm M3 Carl Gustave rocket launcher at Range 10, Pohakuloa Training Area, Hawaii, July 20, 2014 during the 2014 Rim of the Pacific exercise. Twenty-two nations, more than 40 ships and submarines, about 200 aircraft and 25,000 personnel are participating in RIMPAC from June 26 through Aug. 1 in and around the Hawaiian Islands and Southern California. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2014 is the 24th exercise in a series that began in 1971. (U.S. Marine Corps photo by Cpl. Matthew Callahan) - POHAKULOA TRAINING AREA, Hawaii - Australian soldiers assigned to 5th Royal Australian Regiment fire an 84 mm M3 Carl Gustave rocket launcher at Range 10, Pohakuloa Training Area, Hawaii, July 20, 2014 during the 2014 Rim of the Pacific exercise. Twenty-two nations, more than 40 ships and submarines, about 200 aircraft and 25,000 personnel are participating in RIMPAC from June 26 through Aug. 1 in and around the Hawaiian Islands and Southern California. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2014 is the 24th exercise in a series that began in 1971. (U.S. Marine Corps photo by Cpl. Matthew Callahan)

KAHUKU TRAINING AREA, Hawaii - Republic of Korea Marines with 1st Company, 1st Battalion, 3rd Regiment, prepare to step off on a movement conduct a simulated assault of radio hill at the Kahuku Training Area, Hawaii, July 11, 2014. The ROK Marines are attached to Company Landing Team 1 during the 2014 Rim of the Pacific exercise, and are partnered with U.S. Marines as well as attachments from the New Zealand Army. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2014 is the 24th exercise in the series that began in 1971. (U.S. Marine Corps Photo by Cpl. Matthew Callahan) - KAHUKU TRAINING AREA, Hawaii - Republic of Korea Marines with 1st Company, 1st Battalion, 3rd Regiment, prepare to step off on a movement conduct a simulated assault of radio hill at the Kahuku Training Area, Hawaii, July 11, 2014. The ROK Marines are attached to Company Landing Team 1 during the 2014 Rim of the Pacific exercise, and are partnered with U.S. Marines as well as attachments from the New Zealand Army. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2014 is the 24th exercise in the series that began in 1971. (U.S. Marine Corps Photo by Cpl. Matthew Callahan)

Lance Cpl. Timothy Knaggs (center), a team leader with India Company, 3rd Battalion, 3rd Marine Regiment, walks ahead of the Legged Squad Support System, acting as the "follow" for the machine at Marine Corps Training Area Bellows, June 19, 2014. The LS3 is designed to carry Marine's supplies like water, food and ammunition through rough terrain and is undergoing concept-based experimentation. The machine is operated with a Tactical Radio Control worn on the operator's back. The LS3 operates in three modes; Joystick Mode allows for manual operation with a handheld controller; Go-To Mode, in which the pilot sets a waypoint for the LS3 to travel to, and Follow Me Mode, where the machine uses sensors on the TRC to follow the operator. (U.S. Marine Corps photo by Cpl. Matthew Callahan) - Lance Cpl. Timothy Knaggs (center), a team leader with India Company, 3rd Battalion, 3rd Marine Regiment, walks ahead of the Legged Squad Support System, acting as the "follow" for the machine at Marine Corps Training Area Bellows, June 19, 2014. The LS3 is designed to carry Marine's supplies like water, food and ammunition through rough terrain and is undergoing concept-based experimentation. The machine is operated with a Tactical Radio Control worn on the operator's back. The LS3 operates in three modes; Joystick Mode allows for manual operation with a handheld controller; Go-To Mode, in which the pilot sets a waypoint for the LS3 to travel to, and Follow Me Mode, where the machine uses sensors on the TRC to follow the operator. (U.S. Marine Corps photo by Cpl. Matthew Callahan)

Race officials retrieve the first place rubber duckie from the Ala Wai Canal in Honolulu, during the United Cerebral Palsy Association of Hawaii’s 27th Annual Great Hawaiian Rubber Duckie Race, March 21, 2014. While the majority of 3rd Battalion, 3rd Marine Regiment Marines train at the Mountain Warfare Training Center, in Bridgeport, Calif., Marines in the remain-behind element filled Ala Wai Canal with rubber duckies to support the annual event, which raises money to help people who have cerebral palsy. (U.S. Marine Corps photo by Lance Cpl. Matthew Bragg) - Race officials retrieve the first place rubber duckie from the Ala Wai Canal in Honolulu, during the United Cerebral Palsy Association of Hawaii’s 27th Annual Great Hawaiian Rubber Duckie Race, March 21, 2014. While the majority of 3rd Battalion, 3rd Marine Regiment Marines train at the Mountain Warfare Training Center, in Bridgeport, Calif., Marines in the remain-behind element filled Ala Wai Canal with rubber duckies to support the annual event, which raises money to help people who have cerebral palsy. (U.S. Marine Corps photo by Lance Cpl. Matthew Bragg)

Meredith Kimener shares a moment with her husband and baby at building 1087, Dec. 16, 2013. More than 900 Marines and sailors with 3rd Battalion, 3rd Marine Regiment returned from a recent Unit Deployment Program, Dec. 13, 14 and 16. They landed at Joint Base Pearl Harbor-Hickam, and they arrived in three busses to Marine Corps Base Hawaii, escorted by motorcyclists. Each company spent anywhere between six to eight months on deployment. They trained in countries including Malaysia, Philippines, Australia, New Zealand and South Korea. (U.S. Marine Corps photo by Kristen Wong) - Meredith Kimener shares a moment with her husband and baby at building 1087, Dec. 16, 2013. More than 900 Marines and sailors with 3rd Battalion, 3rd Marine Regiment returned from a recent Unit Deployment Program, Dec. 13, 14 and 16. They landed at Joint Base Pearl Harbor-Hickam, and they arrived in three busses to Marine Corps Base Hawaii, escorted by motorcyclists. Each company spent anywhere between six to eight months on deployment. They trained in countries including Malaysia, Philippines, Australia, New Zealand and South Korea. (U.S. Marine Corps photo by Kristen Wong)

Lance Cpl. Ryan Lee, team leader with second platoon, Bravo Company, 1st Battalion, 3rd Marine Regiment, and 20-year-old native of Brandon, Miss., top, explains lateral limits to his junior Marine, Lance Cpl. Cody Morris, an infantry automatic gunner with second platoon, Bravo Co., 1st Bn., 3rd Marines, and 20-year-old native of Long Beach Island, N.J., as he sights through the scope of his rifle. (U.S. Marine Corps photo by Lance Cpl. Matthew Bragg) - Lance Cpl. Ryan Lee, team leader with second platoon, Bravo Company, 1st Battalion, 3rd Marine Regiment, and 20-year-old native of Brandon, Miss., top, explains lateral limits to his junior Marine, Lance Cpl. Cody Morris, an infantry automatic gunner with second platoon, Bravo Co., 1st Bn., 3rd Marines, and 20-year-old native of Long Beach Island, N.J., as he sights through the scope of his rifle. (U.S. Marine Corps photo by Lance Cpl. Matthew Bragg)

Lance Cpl. Tyler Higgason, a rifleman with Lima Company, 3rd Battalion, 3rd Marine Regiment, holds his daughter, Abbigail, and is embraced by his wife, Kayla, at a homecoming event aboard Marine Corps Base Hawaii, Sept. 26, 2013. The company returned from a deployment to Marine Rotational Force Darwin, Australia. While on the deployment, Lima company partook in a number of training exercises with the Australian Defence Force and 31st Marine Expeditionary Unit like Exercise Talisman Saber 2013 and Exercise Koolendong. The remainder of the battalion is in Okinawa, Japan as part of the Unit Deployment Program. (U.S. Marine Corps photo by Cpl. Matthew Callahan) - Lance Cpl. Tyler Higgason, a rifleman with Lima Company, 3rd Battalion, 3rd Marine Regiment, holds his daughter, Abbigail, and is embraced by his wife, Kayla, at a homecoming event aboard Marine Corps Base Hawaii, Sept. 26, 2013. The company returned from a deployment to Marine Rotational Force Darwin, Australia. While on the deployment, Lima company partook in a number of training exercises with the Australian Defence Force and 31st Marine Expeditionary Unit like Exercise Talisman Saber 2013 and Exercise Koolendong. The remainder of the battalion is in Okinawa, Japan as part of the Unit Deployment Program. (U.S. Marine Corps photo by Cpl. Matthew Callahan)

Lance Cpl. Jeremy Coulon, machine gunner and squad leader, weapons platoon, Lima Company, 3rd Battalion, 3rd Marine Regiment, Marine Rotational Force Darwin, and a San Marcos, Texas, native, patrols through a Tongan village on his way to a vehicle checkpoint training evolution as part of Exercise Tafakula 2013 in Tongatapu, Kingdom of Tonga, Sept. 10, 2013.(U.S. Marine Corps Photo by Lance Cpl. Nathan Knapke) - Lance Cpl. Jeremy Coulon, machine gunner and squad leader, weapons platoon, Lima Company, 3rd Battalion, 3rd Marine Regiment, Marine Rotational Force Darwin, and a San Marcos, Texas, native, patrols through a Tongan village on his way to a vehicle checkpoint training evolution as part of Exercise Tafakula 2013 in Tongatapu, Kingdom of Tonga, Sept. 10, 2013.(U.S. Marine Corps Photo by Lance Cpl. Nathan Knapke)

Marines with Marine Rotational Force Darwin run with logs over their shoulders alongside infantry platoons from the Tongan Defence Service and the French Armed Forces New Caledonia during a log-run competition as part of Exercise Tafakula 2013 at Taliai Military Camp, Kingdom of Tonga, Sept. 2, 2013. The purpose of the exercise is to enhance interoperability and improve U.S. military-to-military relations with the Tongan Defence Service and the French Armed Forces New Caledonia.(U.S. Marine Corps photo by Lance Cpl. Nathan Knapke) - Marines with Marine Rotational Force Darwin run with logs over their shoulders alongside infantry platoons from the Tongan Defence Service and the French Armed Forces New Caledonia during a log-run competition as part of Exercise Tafakula 2013 at Taliai Military Camp, Kingdom of Tonga, Sept. 2, 2013. The purpose of the exercise is to enhance interoperability and improve U.S. military-to-military relations with the Tongan Defence Service and the French Armed Forces New Caledonia.(U.S. Marine Corps photo by Lance Cpl. Nathan Knapke)