Schoolgirls in national suits perform during opening ceremony for a St. Nicholas Residence and Workshop of Good Deeds in a basement bomb shelter of a military lyceum on World Children's Day in Kyiv, Ukraine, Wednesday, Nov. 20, 2024. (AP Photo/Efrem Lukatsky)

Ukrainian Minister of Defence Rustem Umerov speaks during a doorstep press conference in Copenhagen, Denmark, Wednesday, Nov. 20, 2024. (Ida Marie Odgaard/Ritzau Scanpix via AP)

Cadets turn on their flashlights to commemorate 659 Ukrainian children, who were killed during the war with Russia, in a military lyceum on World Children's Day in Kyiv, Ukraine, Wednesday, Nov. 20, 2024. (AP Photo/Efrem Lukatsky)

American flag waves in front of the U.S. Embassy in Kyiv, Ukraine, November 20, 2024. (AP Photo/Efrem Lukatsky)

Schoolchildren play a puppet show during opening ceremony for a St. Nicholas Residence and Workshop of Good Deeds in a basement bomb shelter of a military lyceum on World Children's Day in Kyiv, Ukraine, Wednesday, Nov. 20, 2024. (AP Photo/Efrem Lukatsky)

Ukraine's President Volodymyr Zelenskyy, second left, awards honor medals to soldiers during his joint visit with Denmark's Prime Minister Mette Frederiksen, second right, to a military hospital in Kyiv, Ukraine, Tuesday, Nov. 19, 2024. (Mads Claus Rasmussen/Ritzau Scanpix via AP)

Schoolchildren make decorations for a St. Nicholas Residence and Workshop of Good Deeds in a basement bomb shelter of a military lyceum on World Children's Day in Kyiv, Ukraine, Wednesday, Nov. 20, 2024. (AP Photo/Efrem Lukatsky)

Denmark's Defence Minister, Troels Lund Poulsen, left, and Ukrainian Minister of Defence Rustem Umerov, right, attend a press conference during a meeting in Copenhagen, Denmark, Wednesday Nov. 20, 2024. (Ida Marie Odgaard /Ritzau Scanpix via AP)

CORRECTING NAME OF BRUNEI DEFENCE MINISTER- U.S. Defence Secretary Lloyd Austin, left, shakes hands with Brunei's Defence Minister Halbi bin Haji Mohd Yussof during the ASEAN Defence Ministers' informal Meeting in Vientiane, Laos, Wednesday, Nov. 20, 2024. (AP Photo/Anupam Nath)

In this photo provided by the Ukraine's 65th Mechanised Brigade press service on Nov. 19, 2024, Ukrainian soldiers attend a training at a polygon in Zaporizhzhia region, Ukraine. (Andriy Andriyenko/Ukraine's 65th Mechanised Brigade via AP)

Cadets light candles in a 659 shape, the number of Ukrainian children killed in the war with Russia, in a military lyceum on World Children's Day in Kyiv, Ukraine, Wednesday, Nov. 20, 2024. (AP Photo/Efrem Lukatsky)