An HH-60G Pave Hawk helicopter carrying combat search and rescue airmen approaches a landing zone during an exercise at Bagram Airfield, Afghanistan, Aug. 21. 2010. U.S. Air Force photo by Staff Sgt. Christopher Boitz U.S. soldiers with 2nd Battalion, 327th Infantry Regiment, 101st Airborne Division return fire during a firefight with Taliban forces in Barawala Kalay Valley in Kunar province, Afghanistan, March 31, 2011. U.S. Army photo by Pfc. Cameron Boyd An EA-6B Prowler assigned to Electronic Attack Squadron (VAQ) 134 lands aboard the aircraft carrier USS Carl Vinson (CVN 70) in heavy seas. Carl Vinson and Carrier Air Wing (CVW) 17 were on deployment to the U.S. 7th Fleet area of responsibility. U.S. Navy photo by Seaman Rosa A. Arzola Marines with Combat Assault Battalion, Ground Combat Element, 3rd Marine Expeditionary Brigade Forward, III Marine Expeditionary Force, in amphibious assault vehicles train with smoke grenades in Thailand Feb. 11, 2011, during Exercise Cobra Gold 2011. Cobra Gold 2011 is a yearly multinational, joint training exercise designed to improve partner nation interoperability. U.S. Marine Corps photo by Pfc. Mark W. Stroud A U.S. Air Force F-16 Fighting Falcon banks away from a KC-135 Stratotanker from the 340th Expeditionary Air Refueling Squadron after receiving fuel while flying over Iraq in support of Operation New Dawn, Nov. 18, 2010. U.S. Air Force photo by Staff Sgt. Eric Harris Landing Craft Utility (LCU) 1665 delivers supplies and equipment to Vava'u, Tonga, for Pacific Partnership 2011. Pacific Partnership is a a five-month humanitarian assistance initiative that will make port visits to Tonga, Vanuatu, Papua New Guinea, Timor-Leste, and the Federated States of Micronesia. U.S. Navy photo by Mass Communication Specialist Seaman John Grandin U.S. Marines with 1st Marine Division, 1st Tank Battalion, Delta Company, navigate the terrain of Helmand province, Afghanistan in an M1A1 Abrams Tank while on a convoy to forward operating base Edinburgh escorted by 1st Marine Logistics Group (Forward), Combat Logistics Battalion 8 (CLB-8) on Feb. 1, 2011. U.S. Marine Corps Photo by Staff Sgt. Brian A. Lautenslager Emirati F-16E and F Fighting Falcon aircraft fly in formation over Southwest Asia Dec. 9, 2009, during a multinational exercise. During the exercise, aircrews from France, Jordan, Pakistan, the United Arab Emirates, the United Kingdom and the United States trained together in the U.S. Central Command area of responsibility. The UAE's Block 60 F-16s are arguably the most advanced F-16s in the world. DoD photo by Staff Sgt. Michael B. Keller, U.S. Air Force A Task Force Destiny, 101st Combat Aviation Brigade CH-47 Chinook helicopter piloted by Capt. David Jenkins and Chief Warrant Officer 2 Andrew Lau pick up accumulated slings left from previous sling-load resupply missions delivered to Task Force Knight, 1st Battalion, 66th Armor Regiment, 1st Brigade Combat Team, 4th Infantry Division soldiers on a mountainside along the Operational Coordination Center District in the Arghandab River Valley of southern Afghanistan Nov. 8, 2010. U.S. Army Photo by Task Force Destiny Public Affairs Officer Sadie Bleistein U.S. Marine Corps Lt. Col. Matt "Opie" Taylor taxis Navy F-35 flight test aircraft CF-1 to the TC-7 catapult at Naval Air Station Patuxent River for the first test hookup of the F-35C to the catapult. Shipboard testing of the F-35C will take place aboard a Nimitz class aircraft carrier in 2013. Photo courtesy of Lockheed Martin