Russian President Vladimir Putin, left, and Belarusian President Alexander Lukashenko shake hands during a signing ceremony following a meeting of the Supreme State Council of the Russia-Belarus Union State marking the 25th anniversary of the Union State Treaty in Minsk, Belarus, Friday, Dec. 6, 2024. (Vladimir Smirnov, Sputnik, Kremlin Pool Photo via AP)
FILE - In this photo taken from video released by the Russian Defense Ministry Press Service on Wednesday, June 12, 2024, Russian soldiers load a Iskander-M short-range ballistic missile launchers at a firing position as part of Russian military drill intended to train the troops in using tactical nuclear weapons. (Russian Defense Ministry Press Service via AP, File)
FILE - In this photo released by Russian Defense Ministry Press Service on Tuesday, May 21, 2024, Russian troops load an Iskander missile as part of drills to train the military for using tactical nuclear weapons at an undisclosed location in Russia. (Russian Defense Ministry Press Service via AP, File)
Russian President Vladimir Putin and Belarusian President Alexander Lukashenko shake hands during a signing ceremony following a meeting of the Supreme State Council of the Russia-Belarus Union State marking the 25th anniversary of the Union State Treaty in Minsk, Belarus, Friday, Dec. 6, 2024.(Gavriil Grigorov, Sputnik, Kremlin Pool Photo via AP)
Russian President Vladimir Putin and Belarusian President Alexander Lukashenko talk during a signing ceremony following a meeting of the Supreme State Council of the Russia-Belarus Union State marking the 25th anniversary of the Union State Treaty in Minsk, Belarus, Friday, Dec. 6, 2024.(Gavriil Grigorov, Sputnik, Kremlin Pool Photo via AP)
Russian President Vladimir Putin and Belarusian President Alexander Lukashenko attend a signing ceremony following a meeting of the Supreme State Council of the Russia-Belarus Union State marking the 25th anniversary of the Union State Treaty in Minsk, Belarus, Friday, Dec. 6, 2024. (Gavriil Grigorov, Sputnik, Kremlin Pool Photo via AP)