The 45th Space Wing supported the SpaceX launch of the Zuma spacecraft from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida on Jan. 7, 2018. Following stage separation, Falcon 9’s first stage landed at SpaceX’s Landing Zone 1 (LZ-1) at Cape Canaveral Air Force Station, Florida. (Courtesy photo/SpaceX)
U.S. Navy Builder 2nd Class Sean McHugh, assigned to Underwater Construction Team (UCT) 2, repairs a ladder prior to an underwater pile removal operation at Commander, Fleet Activities Sasebo (CFAS), Jan. 10, 2018. (U.S. Navy Combat Camera photo by Arthurgwain L. Marquez)
Secretary of the Army Dr. Mark T. Esper attends an Army Full Honors Arrival Ceremony hosted by the Chief of Staff of the U.S. Army Gen. Mark A. Milley at Conmy Hall on Joint Base Myer-Henderson Hall, Arlington, Virginia, Jan. 5, 2018. (U.S. Army photo by Spc. Anna Pol)
Sonar Technician (Surface) 2nd Class Jacob Ferrantino fires a .50-caliber machine gun aboard the Arleigh Burke-class guided-missile destroyer USS Carney during a live-fire exercise in the Black Sea, Jan. 6, 2018. (U.S. Navy photo by James R. Turner)
Soldiers with Detachment 1, Charlie Company, 2-211th General Support Aviation Battalion, Medical Evacuation (MEDEVAC), Task Force Marauder conducted K-9 medical training with a U.S. Army veterinarian Jan. 8, 2018, in Afghanistan. (Capt. Jessica Donnelly/Army National Guard)
Navy Capt. Joseph Olson, the commanding officer of USS America, addresses the crew on the ship’s flight deck in the Pacific Ocean, Jan. 6, 2018. (Mass Communication Specialist 3rd Class Vance Hand/Navy)
Marine Corps Lance Cpl. Jacob Cooper attempts to remove the hammer of an M16A4 rifle to repair it during a pre-fire inspection at Marine Corps Base Camp Pendleton, Calif., Jan. 8, 2018. (Lance Cpl. Dylan Chagnon/Marine Corps)