Center on Europe and Eurasia

President of Ukraine Volodymyr Zelensky speaks during a meeting with President Joe Biden in the White House on September 21, 2023, in Washington, DC. (Drew Angerer via Getty Images)

Slovakia's Prime Minister Robert Fico arrives for a Central Europe's so-called Visegrad Four group meeting in Brussels on December 14, 2017. (John Thys/AFP via Getty Images)

Ukrainian soldiers maneuver a Bradley Fighting Vehicle in the frontline town of Orihiv, Ukraine, on September 17, 2023. (Oliver Weiken via Getty Images)

(Screenshot via YouTube)

US army soldiers assigned to the 10th Mountain Division stand security at Hamid Karzai International Airport in Kabul, Afghanistan, on August 15, 2021. (Isaiah Campbell via DVIDS)

Russian self-propelled artillery mount MSTA-S exhibited on Khreshchatyk Street in preparation for Independence Day on August 21, 2023, in Kyiv, Ukraine. (Roman Petushkov/Global Images Ukraine via Getty Images)

(DVIDS)

Servicemen of the 128th Separate Brigade of Territorial Defense Forces practice storming enemy positions during a tactical drill in the Zaporizhzhia direction, southeastern Ukraine. (Ukrinform/NurPhoto via Getty Images)

(Jeff Song Photography/Alexander Hamilton Society)

Russian President Vladimir Putin and North Korea's leader Kim Jong Un visiting the Vostochny Cosmodrome in Amur region on September 13, 2023. (Vladimir Smirnov/POOL/AFP via Getty Images)

Afghans make their way through a flooded street toward a nearby airport entrance to try their chance at evacuating out of the country in Kabul, Afghanistan, on August 25, 2021. (Marcus Yam/Los Angeles Times)