Center on Europe and Eurasia

Ukrainian sailors kept on their ship by Russian servicemen as Russian forces without insigna invide Crimea in Sevastopol, Ukraine, on March 5, 2014. (Pierre Crom via Getty Images)

A view of the area during ongoing construction works of Cerkezkoy-Kapikule railway line in Edirne, Turkey, on October 22, 2021. (Gokhan Balci/Anadolu Agency via Getty Images)

(Screenshot via VOA News)

(Screenshot via C-SPAN)

Finnish, NATO, and US flags during a NATO foreign ministers' meeting at the alliance's headquarters in Brussels on April 4, 2023. (Johanna Geron/AFP via Getty Images)

(Screenshot via VOA News)

The expedition cruise ship Polar Pioneer at Gnålodden in the Hornsund in Svalbard, Norway, on July 15, 2015. (Wolfgang Kaehler via Getty Images)

Russian President Vladimir Putin and China's President Xi Jinping toast during a reception at the Kremlin, Moscow, on March 21, 2023. (Pavel Byrkin/SPUTNIK/AFP via Getty Images)

(Screenshot via TVP World)

Nakhimov Square in Sevastopol, Crimea on March 19, 2023. (Vladimir Aleksandrov via Getty Images)

Ukrainian servicemen fire a D-30 howitzer at Russian positions near Bakhmut, Ukraine, on March 21, 2023. (Sergey Shestak/AFP via Getty Images)

An MQ- Reaper remotely piloted aircraft performs aerial maneuvers over Creech Air Force Base, Nevada, on June 25, 2015. (Christian Clausen via DVIDS)