Serhii Beskrestnov, also known as "Flash", an adviser to Ukraine's President Volodymyr Zelenskyy speaks during an interview in Kyiv, Ukraine, Friday 16, 2026. (AP Photo/Efrem Lukatsky)

FILE - A serviceman controls an FPV drone of "General Cherry" company at the polygon in Ukraine, Dec. 4, 2025. (AP Photo/Evgeniy Maloletka, File)

FILE - Ukrainian servicemen prepare a "Chaklun" strike drone used for deep-strike operations against Russian positions in Crimea, in an undisclosed location in Ukraine, Aug. 6, 2026. (AP Photo/Dan Bashakov, File)

Serhii Beskrestnov, also known as "Flash", an adviser to Ukraine's President Volodymyr Zelenskyy speaks during an interview in Kyiv, Ukraine, Friday 16, 2026. (AP Photo/Efrem Lukatsky)

In this image taken from video provided by Russian Presidential Press Service Friday, Oct. 16, 2026, Russian President Vladimir Putin speaks to officers as he visits one of the command posts of the Joint Group of the Russian Forces, at an undisclosed location. (Russian Presidential Press Service via AP) null

In this image taken from video provided by Russian Presidential Press Service on Friday, Oct. 16, 2026, Russian President Vladimir Putin, left, as Russian Chief of General Staff Gen. Valery Gerasimov sits near, during his visits one of the command posts of the Joint Group of the Russian Forces, at an undisclosed location. (Russian Presidential Press Service via AP) null

Ukraine's President Volodymyr Zelenskyy, right, walks behind EU leaders as he arrives for a round table meeting at the EU summit in Brussels, Friday, Oct. 16, 2026. (AP Photo/Geert Vanden Wijngaert)

From left, European Council President Antonio Costa, Ukraine's President Volodymyr Zelenskyy and European Commission President Ursula von der Leyen arrive for the EU summit in Brussels, Friday, Oct. 16, 2026. (AP Photo/Omar Havana)