Air Force Vice Chief of Staff Gen. Stephen Wilson presents the American flag to the next of kin during the full honors funeral ceremony for retired Col. Leo Thorsness at Arlington National Cemetery, Arlington, Va., Feb. 14, 2018. Thorsness received the Medal of Honor for his heroic actions during the Vietnam War. (Staff Sgt. Rusty Frank/Air Force)
Basic Underwater Demolition/SEAL students participate in Surf Passage at Naval Amphibious Base Coronado. Surf Passage is one of many physically demanding evolutions that are a part of the first phase of SEAL training. (Mass Communication Specialist 1st Class Lynn F. Andrews/Navy)
Members of the 436th Security Forces Squadron render a final salute to Rico, a retired military working dog. His former handler and current owner, retired Tech. Sgt. Jason Spangenberg, carried him to the Veterinary Treatment Facility at Dover Air Force Base, Del., Jan. 24, 2018. (Roland Balik/Air Force)
Senior Airman Adam Jurek, from the 122nd hydraulic shop, 122nd Fighter Wing, Fort Wayne, Ind., installs a panel after completing a bleed of the engine hydraulic system on an A-10C Thunderbolt II aircraft during Operation Guardian Blitz, Jan. 25, 2018, at MacDill Air Force Base, Fla. (Staff Sgt. William Hopper/Air Force)
U.S. Marines with Marine Wing Communication Squadron (MWCS) 28 compete in a pugil stick match during the Spartan Cup competition on Marine Corps Air Station Cherry Point, N.C., Feb. 9, 2018. The Spartan Cup is an MWCS-28 event held semiannually to give the Marines a chance to compete against one another while building camaraderie and unit cohesion. (Cpl. Jonathan Wiederhold/Marines)
Spc. Moses Ngunjiri marches to the next objective during Operation Punchbowl at Joint Base Elmendorf-Richardson, Alaska, Feb. 10, 2018. (Alejandro Peña/Air Force)
Spc. Colin Martin, 3d U.S. Infantry Regiment (Old Guard) gives a kiss to Hank, an 11 years old Caisson Platoon horse, before conducting funeral training at Arlington National Cemetery, Arlington, Virginia, Feb. 6, 2018. (Elizabeth Fraser/ Arlington National Cemetery)
Senior Airman Jeremy Noel, 96th Aircraft Maintenance Squadron Red Crew, ensures the AIM-9 missile is in the correct position on the F-15 during a weapons load competition Feb. 9 at Eglin Air Force Base, Fla. The annual competition tests the knowledge and proficiency of the Airmen and identifies the load crew of the year. The winning crew is scheduled to be announced at the Maintenance Professionals of the Year Banquet in March. (Samuel King Jr./Air Force)
Soldiers provide fire support while conducting a night assault during Operation Punchbowl at Joint Base Elmendorf-Richardson, Alaska, Feb. 10, 2018. (Alejandro Peña/Air Force)
U.S. Army Sgt. William J. Cosgrove and Royal Thai Armed Forces Sgt. Maj. 3 Attaporn Uttarahong take a photo together during a break at the rehearsal for the Exercise Cobra Gold 18 opening ceremony on Camp Friendship, Thailand, Feb. 9, 2018. (Staff Sgt. David N. Beckstrom/Army)
U.S. Marines with Special-Purpose Marine Air-Ground Task Force-Crisis Response-Africa, logistics combat element, simulate a gas attack during a field exercise at Morón Air Base, Spain, Feb. 7, 2018. SPMAGTF-CR-AF is deployed to conduct limited crisis-response and theater-security operations in Europe and North Africa. (U.S. Marine Corps photo by Sgt. Takoune H. Norasingh/Released)