United States Marine LCpl. Franklin Romans of Michigan, from the 2nd Battalion 2nd Marines “Warlords” searches a house during an operation in the Garmsir district of the volatile Helmand province, southern Afghanistan, on December 23, 2009. (Photo by Kevin Frayer/AP Photo/File)





A Ukrainian poses for a photo at a fighting position on the line of separation from pro-Russian rebels near Toretsk, eastern Ukraine, Thursday, May 6, 2021. (Photo by Felipe Dana/AP Photo)





A Romanian infantry ranger, who wears a protective mask, is seen during the Multinational military exercise “Justice Sword 21” held at Smardan shooting range, 260 kilometers north-east of Bucharest, Romania, 11 May 2021. Multinational military exercise “Justice Sword 21” is a real-life tactical LIVEX tactical exercise aimed to improve the ability to plan, lead and conduct combat actions in a multinational and united context. At the Justice Sword multinational exercise participate more than 2,000 soldiers and about 500 technical means and fighting machines from the Romanian Land Forces took part, with the support of a Polish infantry company from the South-East Multinational Brigade from Craiova and from the Romanian Air Force. (Photo by Robert Ghement/EPA/EFE)





Mofti Noman's house guard stand in front of his home near the mosque after a bomb explosion in Shakar Dara district of Kabul, Afghanistan, Friday, May 14, 2021. A bomb ripped through a mosque in northern Kabul during Friday prayers killing 12 worshippers, Afghan police said. (Photo by Rahmat Gul/AP Photo)





Recruits from U.S. Marine Corps Recruit Depot San Diego, Lima Company, participate in the final leg of the grueling Crucible training to become the first ever women Marines trained at Camp Pendleton, California, U.S., April 22, 2021. (Photo by Mike Blake/Reuters)





A recruit from U.S. Marine Corps Recruit Depot San Diego, Lima Company, listens to instructions as her platoon participates in the grueling crucible training to become the first ever women Marines trained at Camp Pendleton, California, U.S., April 21, 2021. (Photo by Mike Blake/Reuters)





Lance Cpl. Blas Trevino of the 1st Battalion, 5th Marines, shouts out as he is rescued on a medevac helicopter from the U.S. Army's Task Force Lift “Dust Off”, Charlie Company 1-214 Aviation Regiment after he got shot in the stomach outside Sangin, in the Helmand Province of southern Afghanistan on June 11, 2011. The Army's 'Dust Off' crew needed two attempts to get him out, as they were fired upon and took five rounds of bullets into the tail of their aircraft. (Photo by Anja Niedringhaus/AP Photo/File)





Soldiers from the U.S. Army First Battalion, 26th Infantry take defensive positions at firebase Restrepo after receiving fire from Taliban positions in the Korengal Valley of Afghanistan's Kunar Province on May 11, 2009. Spc. Zachary Boyd of Fort Worth, TX, far left was wearing “I love NY” boxer shorts after rushing from his sleeping quarters to join his fellow platoon members. From far right is Spc. Cecil Montgomery of Many, LA and Jordan Custer of Spokan, WA, center. (Photo by David Guttenfelder/AP Photo/File)





Afghan policemen stand next to a captured Taliban fighter after a gun battle near the village of Shajoy in Zabol province, March 2008. (Photo by Goran Tomasevic/Reuters)





U.S Army soldiers and an Afghan policeman look at the bodies of Taliban fighters after a 40-minute gun battle near the village of Shajoy in Zabol province March 2008. (Photo by Goran Tomasevic/Reuters)





Somali military opposition soldiers from Hawiye clan parade as they move to their barracks after reaching an agreement with the prime minister following clashes over the tenure of the president in Mogadishu, Somalia on May 7, 2021. (Photo by Feisal Omar/Reuters)





In this October 29, 2013, file photo, soldiers of the Kachin Independence Army (KIA) stand on guard in Laiza, a border town of China and Myanmar, Kachin State, Myanmar. The Kachin Independence Army claims to have shot down a helicopter belonging to the government’s military Monday, May 3, 2021, in the course of heavy fighting over a strategic position. (Photo by Khin Maung Win/AP Photo/File)





A U.S. soldier arrives at the scene where a suicide car bomber attacked a NATO convoy in Kabul, Afghanistan on May 16, 2013. A Muslim militant group, Hizb-e-Islami, claimed responsibility for the powerful explosion that killed and wounded many and rattled buildings across Kabul. (Photo by Anja Niedringhaus/AP Photo/File)





In this July 14, 2020, file photo, a Ukrainian soldier pays her final respects at the coffin of serviceman Taras Matviiv, honored with the Hero of Ukraine highest state award after being killed while fighting against pro-Russian rebels, during his funeral in Independence Square, Kyiv, Ukraine. Tensions have risen in the conflict in eastern Ukraine, with growing violations of a cease-fire and a massive Russian military buildup on its side of the border. (Photo by Efrem Lukatsky/AP Photo/File)





2nd Lt. Andrew Ferrara, 23, of Torrance, Calif., with the U.S. Army's Bravo Company of the 25th Infantry Division, 3rd Brigade Combat Team, 2nd Battalion 27th Infantry Regiment, based in Schofield Barracks, Hawaii, turns from the rotor wash of a landing Blackhawk helicopter during a mission for a key leader engagement at the Shigal district center on September 15, 2011, in Kunar province, Afghanistan. (Photo by David Goldman/AP Photo/File)