An Army Ranger carrying an M240 machine gun rappels down a wall as part of a demonstration during a Ranger school graduation on Fort Benning, Ga., Oct. 17, 2014. U.S. Air Force photo by Airman 1st Class Ryan Callaghan
U.S. soldier 1st Lt. Brad Wieberg from the 7th Weapons of Mass Destruction Civil Support Team (CST), Missouri National Guard surveys for radiation at Kauffman Stadium in Kansas City, Mo. Oct. 20, 2014. The 7th CST worked with federal and local agencies to insure a safe environment during the 2014 World Series against the Kansas City Royals and San Francisco Giants. (Air National Guard photo by Senior Airman Patrick P. Evenson/Released)
The 615th Engineer Company, 52nd Engineer Battalion will be deploying approximately 160 engineers to West Africa to help with the fight against Ebola. The soldiers will not be working directly with Ebola patients, but are receiving specific medical training to ensure they are protected from exposure to Ebola. Spec. Jason Dumas, left, helps Spec. David Quichocho, right, with his protective boots during a training session at Ft. Carson on Thursday, Oct. 23, 2014. (AP Photo/The Colorado Springs Gazette, Jerilee Bennett)
ARLINGTON, VA - OCTOBER 23: National Defense Minister of Korea Han Min Koo (R) awards retired US Army Col. William Weber (L) the Paik Sun Yup award during a press briefing October 23, 2014 at the Pentagon in Arlington, Virginia. U.S. Secretary of Defense Chuck Hagel met with Han to discuss topics of mutual interest. They signed a memorandum of understanding for the transfer of operational control of the South Korean military. (Photo by Alex Wong/Getty Images)
U.S. Air Force Airman 1st Class Jon Peterson, left, and Senior Airman Cameron Corricelli, right, participate in Check Six program instruction on Bagram Air Field, Afghanistan, Oct. 21, 2014. The program is designed to prepare service members to respond to attacks. Peterson is deployed from Travis Air Force Base, Calif. Corricelli is deployed from Charleston Air Force Base, S.C. U.S. Air Force photo by Staff Sgt. Evelyn Chavez
U.S. Marines attach a hoist sling to an MH-60S Seahawk helicopter on the flight deck of the amphibious assault ship USS Makin Island during a vertical replenishment with the amphibious transport dock ship USS San Diego in the Red Sea, Oct. 21, 2014. U.S. Navy photo by Petty Officer 2nd Class Christopher Lindahl
Marines board a CH-53E Super Stallion aircraft during airborne sustainment training on Camp Pendleton, Calif., Oct. 21, 2014. The Marines are assigned to the 15th Marine Expeditionary Unit. U.S. Marine Corps photo by Sgt. Emmanuel Ramos
A machine gunner with Golf Company, Battalion Landing Team 2nd Battalion, 1st Marines, 11th Marine Expeditionary Unit (MEU), fires an M240B machinegun during a gunners qualification aboard the amphibious assault ship USS Makin Island (LHD 8), Oct. 19. The Makin Island Amphibious Ready Group (ARG) and the embarked 11th MEU are deployed in support of maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility. (U.S. Marine Corps photo by Cpl. Laura Y. Raga/Released)
Staff Sgt. Ken Rood, right, and Sgt. 1st Class Liam OÕNeil, of the Massachusetts National GuardÕs 101st Field Artillery Regiment, fire their 105mm cannons during the USS ConstitutionÕs arrival at Castle Island here Friday, Oct. 17, 2014. The 101st, along with the Concord Battery, executed a 21-gun salute to the USS Constitution, as the ship got underway in Boston Harbor. The underway was the last scheduled outing for the ship until 2018, as ÒOld IronsidesÓ is scheduled for a lengthy and significant dry dock period for restoration. The Constitution is the worldÕs oldest commissioned war ship still afloat. (U. S. Army National Guard photo by Sgt. Doug Huddy, Massachusetts National Guard Public Affairs/Released)
U.S. Soldiers with the Oklahoma Army National Guard rowing team practice rowing on the Oklahoma River Oct. 21, 2014, in Oklahoma City. (U.S. Army photo by Maj. Geoff Legler/Released)
141022-N-WL435-300 NORFOLK (Oct. 22, 2014) Chief of Naval Operations (CNO) Adm. Jonathan Greenert receives a system update brief in the combat information center aboard the Arleigh Burke-class guided-missile destroyer USS Bainbridge (DDG 96) before holding an all-hands call. Greenert briefed the ship's officers and crew on the current status of the Navy and answered questions about current events, Navy programs and policies. (U.S. Navy photo by Chief Mass Communication Specialist Peter D. Lawlor/Released)