Spc. Isaac Viers, a heavy equipment operator assigned to the Virginia National Guard?s 276th Engineer Battalion directs a high-mobility engineer excavator to remove snow Feb. 28, 2015, throughout communities in Lee County, Va. (Andrew J. Czaplick/U.S. Army)

Sgt. Christopher Hughes, of the 43rd Sustainment Brigade, 4th Infantry Division, carries the American flag across the finish line at the Army Marathon Shadow Run on March 1, 2015, at Camp Arifjan, Kuwait. (Jason Thomspon/U.S. Army)

Dragoons assigned to the 2nd Cavalry Regiment participate in their unit's live-fire exercise at the Grafenwoehr Training Area, located near Rose Barracks, Germany, Feb. 27, 2015. (William Tanner/U.S. Army)

Dragoons assigned to the 2nd Cavalry Regiment participate in their unit's live-fire exercise at the Grafenwoehr Training Area, located near Rose Barracks, Germany, Feb. 27, 2015. (William Tanner/U.S. Army)

Paratroopers from the 82nd Airborne Division fire their M777 towed howitzer at high angle as part of Table VI Section Qualifications on Fort Bragg, N.C. (Joe Bush/U.S. Army)

Pvt. D?Angelo Ravizee, left, and Pvt. 1st Class Shane Baer carry Spc. Tobbi Hurtado, a team leader with K Troop, 3rd Squadron, 2nd Cavalry Regiment, to safety during a raid exercise at Drawsko Pomorskie Land Forces Training Center, Poland, Feb. 28, 2015, in preparation for an upcoming live-fire exercise with the Polish army. (Jim Wagner/U.S. Army)