Center on Europe and Eurasia

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

Russian President Vladimir Putin and Iran's President Ebrahim Raisi hold a meeting in Tehran on July 19, 2022. (Sergei Savostyanov/Sputnik/AFP via Getty Images)

A Ukrainian serviceman flies a drone to spot Russian positions near Bakhmut, Ukraine, on March 5, 2023. (Aris Messinis/AFP via Getty Images)

(Screenshot via YouTube)

(Screenshot via ABC News)

Ukrainian servicemen fire a Caesar self-propelled howitzer toward Russian positions at a front line in Donbas, Ukraine, on June 15, 2022. (Aris Messinis/AFP via Getty Images)

(Wikimedia Commons)

A Ukrainian military member sitting on top of an armored vehicle on a dirt road on February 26, 2023, in Donetsk, Ukraine. (Yan Dobronosov/Global Images Ukraine via Getty Images)

Ukrainian soldiers at an awards ceremony in Kyiv, Ukraine, on February 24, 2023. (President of Ukraine via Flickr)

Secretary of State Antony J. Blinken visits the Khast-Imam in Tashkent, Uzbekistan, on March 1, 2023. (State Department photo by Chuck Kennedy)

(Screenshot via TBN)

A Ukrainian soldier with an assault rifle stands amid wreckage as debris lie in the garage at a trolleybus depot on January 27, 2023, in Bakhmut, Ukraine. (Yan Dobronosov/Global Images Ukraine via Getty Images)