Ukraine's Volodymyr Zelenskyy and top European leaders are in Washington for make-or-break meetings with President Trump over the Russian invasion.

Zelenskyy and Trump expressed hopes that talks with Ukrainian and European leaders at the White House could lead to trilateral talks with Putin to bring an end to his war on Ukraine.

Trump didn't rule out the possibility of American troops' helping to guarantee peace between Ukraine and Russia should the leaders reach an agreement.