Army paratroopers and eight partner NATO nations conduct airborne operations at Sicily Drop Zone during the 20th Annual Randy Oler Memorial Operation Toy Drop, Dec. 2, 2017. Operation Toy Drop, hosted by the U.S. Army Civil Affairs & Psychological Operations Command (Airborne) and is the largest combined airborne operation conducted worldwide. (Staff Sgt. Timothy R. Koster/Army)
A New Jersey National Guard UH-60 Black Hawk from the 1-150 Assault Helicopter Battalion flies with a concrete block in front of the waxing gibbous moon during sling load training at Joint Base McGuire-Dix-Lakehurst, N.J., Dec. 1, 2017. (Master Sgt. Matt Hecht/Air National Guard)
Marines provide security after conducting simulated village raids at the Jungle Warfare Training Center in Okinawa. Japan, on Dec. 6, 2017, during the 3rd Marine Division Annual Squad Competition. (Cpl. Carl King/Marine Corps)
Secretary of Defense James N. Mattis cheers on the U.S. Army football team during a pep rally at the Pentagon on Dec. 8, 2017, in Washington. (Air Force Staff Sgt. Jette Carr/DoD)
Vice President Mike Pence poses for a photo with the U.S. Naval Academy pep rally at the Pentagon on Dec. 7, 2017, in Washington. (Army Sgt. Amber I. Smith/DoD)
