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)
European Commission President Ursula von der Leyen greets Ukraine's President Volodymyr Zelensky as he arrives at the Special European Council in Brussels on March 6, 2025. (Nicolas Tucat/AFP via Getty Images)
A screen grab from a video shows Russian President Vladimir Putin, dressed in military uniform, visiting a command post in Kursk, Russia, on March 12, 2025. (Kremlin Press Office via Getty Images)
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)
Ukrainian military walk through the destruction after a large scale Russian attack on a residential complex on March 10, 2025, in Dobropillia, Ukraine. (Paula Bronstein via Getty Images)
NATO Secretary General Mark Rutte and US President Donald Trump hold a meeting in the Oval Office of the White House on March 13, 2025, in Washington, DC. (Andrew Harnik via Getty Images)
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)
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)