The U.S. is lobbying countries around the world to oppose a resolution brought forward at the U.N. General Assembly by Ukraine and European countries.

Russian President Vladimir Putin said on Monday that Russia was not opposed to Europe's involvement in Russia-U.S. peace talks aimed at settling the conflict in Ukraine, but noted that Brussels had long rejected any dialogue with Moscow.

Trump has horrified European allies with his attacks on Volodymyr Zelenskyy and what critics say is a soft take on Vladimir Putin.