President Trump has shredded America’s defense pact with Europe. Now there are signs that longstanding allies are getting serious about cutting their dependence.

Within a short time, prime ministers and presidents from the north, south, east and west of the continent posted on social media in support of Zelenskiy and Ukraine in the war against Russia's invasion,

The bombshell moment that played out in the Oval Office Friday afternoon and the palpable animosity on display between President Donald Trump, Vice President JD Vance and Ukrainian President Volodymyr Zelenskyy will have alarm bells ringing across Europe.

President Trump, Ukrainian President Zelenskyy and Vice President Vance had a tense exchange about the ongoing war with Russia. Vance asked Zelenskyy if he has ever said "thank you" for U.S. aid and Trump clashed with him over what has been provided.

Watch: Trump tells Zelensky he is 'gambling with World War Three' This video can not be played. To play this video you need to enable JavaScript in your browser.

President Trump will meet with Ukrainian President Zelenskyy. NBC News' Garrett Haake reports more from the White House. Igor Novikov, a former advisor to Ukraine President Zelenskyy, and former U.S.

Trump was asked if he still considered Volodymyr Zelenskyy a “dictator.” “Did I say that? I can’t believe I could say that,” Trump responded. During a conversation with reporters in the Oval Office, Trump acknowledged that his relationship with Zelenskyy could have become tense but expressed a willingness to cooperate with the Ukrainian leader.