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)
93rd Brigade training with an International M1224 MaxxPro Mine-Resistant Ambush Protected infantry transport vehicle and two Soviet BMP-2 infantry fighting vehicles in Donetsk Oblast, Ukraine, on February 27, 2025. (Jose Colon/Anadolu via Getty Images)
Russian President Vladimir Putin and Kazakh President Kassym-Jomart Tokayev attend a welcoming ceremony prior to their talks at the Ak Orda Presidential Palace, on November 27, 2024, in Astana, Kazakhstan. (Getty Images)
A signing table remains in the East Room after Ukrainian President Volodymyr Zelensky leaves the White House early on February 28, 2025, in Washington, DC. (Andrew Harnik via Getty Images)
US President Donald Trump and Ukraine's President Volodymyr Zelensky meet in the Oval Office of the White House in Washington, DC, February 28, 2025. (Saul Loeb/ AFP via Getty Images)
US President Donald Trump and Ukrainian President Volodymyr Zelensky meet in the Oval Office at the White House on February 28, 2025, in Washington, DC. (Andrew Harnik via Getty Images)
Ukrainian soldiers practice firing a Browning heavy machine gun on February 20, 2025, in Donetsk Oblast, Ukraine. (Roman Chop/Global Images Ukraine via Getty Images)
Recep Tayyip Erdogan and President Volodymyr Zelenskyy attend a ceremony for signing bilateral agreements at the Presidential Complex in Ankara, Turkiye, on February 18, 2025. (TUR Presidency/Murat Cetinmuhurdar/Anadolu via Getty Images)
Ukrainian President Volodymyr Zelenskyy and then US president-elect Donald Trump shake hands after their meeting at the Elysee Presidential Palace in Paris, France, on December 7, 2024. (Ukrainian Presidency / Handout/Anadolu via Getty Images)