A paratrooper assigned to U.S. Army Alaska's 1st Battalion, 501st Infantry Regiment drops into a narrow draw at the Joint Readiness Training Center's Peason Ridge on Fort Polk, La., on Feb. 13, 2016. (Sean Brady/U.S. Army)

Soldiers from the 1st Battalion, 41st Infantry Regiment, stationed out of Fort Carson, Colo., shield themselves from a Molotov cocktail - a general name used for various bottle-based improvised flammable weapons -- during fire phobia training, Feb. 16, 2016, at the Joint Multinational Readiness Center in Hohenfels, Germany. (Thomas Duval/U.S. Army)

Spc. Marc Charles, a cook with 3rd Squadron, 2nd Cavalry Regiment, of Vilseck, Germany, turns the crank handle in order to level the containerized kitchen during Winter Camp at Tapa Training Area in Estonia, Feb. 15, 2016. (Steven Colvin/U.S. Army)

Spc. Jacob Little, an infantryman assigned to Headquarters and Headquarters Troop, 3rd Squadron, 2nd Cavalry Regiment, slides down a rope from a tower during multinational fast rope familiarization training, Feb. 16, at Adazi Military Base, Latvia. (Paige Behringer/U.S. Army)

U.S. Army soldiers assigned to 3rd Cavalry Regiment, 1st Cavalry Division, pull security from an overwatch position during a village clearance operation at the National Training Center, Fort Irwin, Calif., Feb. 17, 2016. (Alex Manne/U.S. Army)

First Lt. Kevin Dobbyn, a pilot with 1st Attack Reconnaissance Battalion, 82nd Combat Aviation Brigade, examines details on the screen of his AH-64 Apache during the unit's aerial gunnery exercise, at Fort A.P. Hill, Va., Feb. 16, 2016. (Christopher Freeman/U.S. Army)

Cheif Warrant Officer 2 Harold Johnson, a pilot with 1st Attack Reconnaissance Battalion, 82nd Combat Aviation Brigade, holds up "Fluffy," a doll given to him by his daughter for good luck, at Fort A.P. Hill, Va., on Feb. 18, 2016. (Christopher Freeman/U.S. Army)