A visible rift between the U.S. and Europe emerged as President Trump skipped the welcome for top EU leaders, leaving Ursula von der Leyen, Emmanuel Macron, Keir Starmer, and NATO’s Mark Rutte without a presidential greeting.

NATO Secretary General Mark Rutte said on Monday NATO membership for Ukraine was not under discussion but that there was a discussion on "Article 5" type security guarantees for the country that Russia invaded in February 2022.

Leaders of five European nations, plus the European Commission and NATO, are meeting with presidents Trump and Zelenskyy Aug. 18. Here's who they are.

President Donald Trump is scheduled on Monday to welcome Ukrainian President Volodymyr Zelenskyy to the White House for a high-stakes meeting as the U.S. president pushes for a deal to end Moscow's war on its neighbor. A host of European leaders will join the pair.

Trump: “President Zelensky can end the war with Russia almost immediately, if he wants to, or he can continue to fight."

European and NATO leaders announced Sunday that they will joining President Volodymyr Zelensky in Washington for crucial talks with President Trump.