A Vietnam Veterans Memorial docent makes a rubbing for the family of Spc. 4 Donald P. Sloat who was posthumously awarded the Medal of Honor earlier this week, Washington, D.C., on Sept. 17, 2014. (Bernardo Fuller/U.S. Army)

Army veteran Rico Roman of the San Antonio Rampage handles a puck during a sled hockey game with the USA Warriors in Rockville, Md., Sept. 18, 2014. (EJ Hersom/Department of Defense)

Troops assigned to 3rd Squadron, 2d Cavalry Regiment fire the M98 Javelin Weapon System during range operations conducted at Grafenwoehr Training Area located near Rose Barracks, Germany, Sept. 23, 2014. (William Tanner/U.S. Army)

Zac, chaplain service dog, rests on Mobilization Training Center Bliss Chaplain Maj. Karen Hallett?s leg as he waits for the flight that will take him to Kuwait to meet his new handler. (David Parish/U.S. Army)

A soldier with 16th Combat Aviation Brigade, 7th Infantry Division, Joint Base Lewis-McChord, Wash., makes her way through a barbed-wire obstacle during the Sisters in Arms confidence course onSept. 19, 2014. (Cody Quinn/U.S. Army)

Secretary of the United States Army John McHugh shakes hands with Pvt. Garret Matthews, a paratrooper with the U.S. Army Europe's 173rd Airborne Brigade, while talking to soldiers at Rapid Trident 2014 in the Ukraine, Sept. 19, 2014. (Joshua Leonard/U.S. Army)

A soldier from the 36th Infantry Division, Texas Army National Guard observes a section of the Rio Grande River at sunset on September 2014. He is serving at the Texas-Mexico border in support of Operation Strong Safety. (Randall Stillinger/U.S. Army)

A scope shows a silhouette target 100-meters away while an Army Reserve Soldier zeroes his M16A2 rifle during the inaugural Army Reserve Small Arms Championship hosted at Camp Robinson, Ark., Sept. 22, 2014. (Michel Sauret/U.S. Army)

Spc. Kevin Salas of the 16th Combat Aviation Brigade holds his daughter, Alannah, for the first time at a homecoming ceremony on Joint Base Lewis-McChord, Wash., Sept. 20, 2014. (Bryan Dominique/U.S. Army)

Army Reserve soldiers and competitors listen to a class on rifle marksmanship before the inaugural Army Reserve Small Arms Championship hosted at Camp Robinson, Arkansas, Sept. 22, 2014. (Michel Sauret/U.S. Army)