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)
Chris Hughes attends 2010 Blouin Creative Leadership Summit - Day 2 at the Metropolitan Club on September 23, 2010 in New York City. (Photo by Thos Robinson/Getty Images for Louise Blouin Group)
U.S. Army soldiers from the 2-82 Field Artillery, 3rd Brigade, 1st Cavalry Division, one of the last American combat units to exit from Iraq on December 15, 2011. (Joe Raedle/Getty Images)
U.S. Secretary of Defense Chuck Hagel (C) speaks as President Barack Obama (L) and Vice President Joe Biden look on during a press conference announcing Hagel's resignation, November 24, 2014. (Chip Somodevilla/Getty Images)
General view of the escalators at Comuna 13 neighborhood in Medellin, Antioquia department, Colombia on December 26, 2011, the day of their inauguration. (RAUL ARBOLEDA/AFP/Getty Images)