Image 0 of 11Marine Corps recruits with Lima Company, 3rd Battalion, Recruit Training Regiment, stand in formation at the rappel tower on Marine Corps Recruit Depot, Parris Island, S.C., Aug. 22, 2017. (Lance Cpl. Colby Cooper/Marine Corps) Colombian Army engineers learn about the dry support bridge, bridging equipment from U.S. soldiers assigned to the 125th Multi Role Bridge Company, South Carolina Army National Guard, at Clarks Hill Training Center, S.C., Aug. 23, 2017. (Tech. Sgt. Jorge Intriago/Air National Guard) An F/A-18C Hornet assigned to the “Death Rattlers” of Marine Strike Fighter Squadron (VMFA) 323 prepares to take off from the aircraft carrier USS Nimitz (CVN 68) on Aug. 23, 2017, in the Persian Gulf. (MC2 Elesia K. Patten/Navy) Senior Airman Ryne Wilson, 99th Security Forces Squadron military working dog handler, praises Habo during a patrol at Nellis Air Force Base, Nev., Aug. 7, 2017. Praising their dog for exhibiting good behavior is an exceptional way to help build a bond between the handler and their dog. (Airman 1st Class Andrew D. Sarver/Air Force) Spc. Brittany Coffey, a combat engineer with Company A, 588th Brigade Engineer Battalion, 3rd Armored Brigade Combat Team, 4th Infantry Division, rehearses laying a bridge while operating an armored vehicle-launched bridge at Grafenwoehr Training Area, Germany, Aug. 21, 2017. (Staff Sgt. Ange Desinor/Army) Marine Corps Recruits with November Company, 4th Battalion, and Bravo Company, 1st Battalion, Recruit Training Regiment, conduct the 3-mile run portion of a physical fitness test (PFT) on Marine Corps Recruit Depot Parris Island, S.C., Aug. 21, 2017. (Lance Cpl. Colby Cooper/Marine Corps) An F-16 Fighting Falcon with the 555th Expeditionary Fighter Squadron - the Triple Nickel - takes off from Bagram Airfield, Afghanistan, Aug. 22, 2017. (Capt. Keenan Kunst/Air Force) U.S. soldiers with Alpha Company, 1st Battalion, 8th Infantry Regiment, 3rd Armored Brigade Combat Team, 4th Infantry Division, conduct an Air Assault Exercise with Support from the 3rd General Support Aviation Battalion, 10th Aviation Brigade at the 7th Army Training Command's Grafenwoehr Training Area, Germany, Aug. 24, 2017. (Visual Information Specialist Gertrud Zach/Army) An F/A-18E Super Hornet assigned to the "Tomcatters" of Strike Fighter Squadron (VFA) 31 breaks the sound barrier above the aircraft carrier USS George H.W. Bush (CVN 77) during an air power demonstration on Aug. 20, 2017, in the Atlantic Ocean. (MC3 Matt Matlage/Navy) An AV-8B Harrier, assigned to the "Tomcats" of Marine Attack Squadron (VMA) 311, takes off from the flight deck of the amphibious assault ship USS Bonhomme Richard (LHD 6) on Aug. 22, 2017, in the Coral Sea. (MC2 Cameron McCulloch/Navy) Aviation Boatswain’s Mate (Handling) Esmeralda Hernandez prepares to direct a UH-1Y Venom on Aug. 23, 2017, on the flight deck. San Diego (LPD 22) in the South China Sea. (MC3 Justin A. Schoenberger/Navy)