Gunners from the Armed Forces of Ukraine fire at Russian position with a 155 mm self-propelled howitzer 2C22 in the Kharkiv region on April 21, 2024. (Anatolii Stepanov/AFP via Getty Images)
Chinese sailors stand next to a submarine rescue ship Hongzehu from the PLA Navy as it is docked on April 23, 2024, in Qingdao, China.(Kevin Frayer via Getty Images)
Researchers with the Naval Postgraduate School and NASA employ a REMUS 100 UUV to create a detailed map of a shallow environment off the coast of Florida on September 13, 2013. (DVIDS
Gunners from the Armed Forces of Ukraine fire at Russian position with a 155 mm self-propelled howitzer 2C22 in the Kharkiv region on April 21, 2024. (Anatolii Stepanov/AFP via Getty Images)
Chinese sailors stand next to a submarine rescue ship Hongzehu from the PLA Navy as it is docked on April 23, 2024, in Qingdao, China.(Kevin Frayer via Getty Images)
The Skydio X10D drone flies during a counter-uncrewed aerial systems training exercise at Grafenwoehr Training Area in Bavaria, Germany, on February 13, 2025. (US Army photo)
North Korean People's Army soldiers march on September 9, 2018, in Pyongyang, North Korea, as part of a parade celebrating the seventieth anniversary of the nation's founding. (Asahi Shimbun via Getty Images)
Taiwanese civilians in tactical gear and replica weapons taking part in an urban warfare workshop on June 18 in Linko district, New Taipei City. (Photo by Sam Yeh / AFP)
Shinzo Abe gestures as he speaks during a news conference at the Prime Minister's official residence on April 17, 2020, in Tokyo, Japan. (Photo by Kiyoshi Ota - Pool/Getty Images)