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)
Ukrainian soldiers use an armored engineer vehicle based on a Leopard tank chassis to pull their comrades car from a ditch on May 11, 2023. (Serhii Mykhalchuk/Global Images Ukraine via Getty Images)
Members of the Wagner Group prepare to depart from the Southern Military District's headquarters and return to their base on June 24, 2023, in Rostov-on-Don, Russia. (Stringer/Anadolu Agency via Getty Images)
Visitors walk past China's second nuclear missile on display as they visit the Military Museum in Beijing, on July 23, 2007. (Teh Eng Koon/AFP via Getty Images)
Three of the four Apollo 13 flight directors applaud the successful splashdown of the Command Module Odyssey on April 17, 1970. (NASA via Getty Images)
US Marine Corps recruits with Delta Company participate in the “stairway to heaven” challenge on Marine Corps Base Camp Pendleton, California, on July 29, 2022. (Cristian G. Torres via DVIDS)