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)
The Los Angeles-class fast-attack submarine USS Newport News returned home to Submarine Base New London in Groton, Connecticut, on January 3, 2023. ( John Narewski via DVIDS)
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 Coast Guard Captain Jamie Frederick speaks during a press conference on June 20, 2023, about the search efforts for the submersible that went missing. (Joseph Prezioso 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)