In this pool photograph distributed by the Russian state agency Sputnik, Vladimir Putin enters a hall to meet with graduates of higher military educational institutions at the Kremlin on June 23, 2025. (Alexander Kazakov via Getty Images)
A formation of Dongfeng-41 nuclear missiles takes part in a military parade celebrating the seventieth anniversary of the founding of the People’s Republic of China in Beijing on October 1, 2019. (Xia Yifang via Getty Images)
Senior lecturer in the Department of Security Studies and Criminology at Macquarie University, Council of the Australian Strategic Policy Institute
President Donald Trump and Ukrainian President Volodymyr Zelenskyy pose for a picture with European leaders following a meeting at the White House on August 18, 2025. (Win McNamee via Getty Images)
A US Marine Corps VXE30 Stalker unmanned aerial system is staged during a maritime domain awareness training exercise in southern Finland on July 31, 2025. (DVIDS)
Research and Development Gallery at the National Museum of the US Air Force offers visitors the opportunity to view the world’s only remaining XB-70 at the Wright-Patterson Air Force Base in Ohio on June 17, 2021. (Tyler Greenlees via DVIDS)
Chinese President Xi Jinping delivers an important speech during his inspection of the headquarters of the People's Liberation Army PLA Eastern Theater Command on July 6, 2023. (Li Gang/Xinhua via Getty Images)
Janet Yellen shakes hands with He Lifeng during a meeting at the Diaoyutai State Guesthouse on July 8, 2023, in Beijing, China. (Mark Schiefelbein via Getty Images)