Some conservative members of Donald Trump's "Make America Great Again" movement have reacted angrily to the president's plans to sell weapons to Nato, arguing it is a betrayal of his promise to end US involvement in foreign wars.

Ukrainian President Volodymyr Zelenskiy also held talks with a U.S. envoy on Monday on increasing weapons production and arms purchases.

President Donald Trump is anticipated to meet with NATO chief Mark Rutte, make a "major" announcement on Russia, and join an AI and energy summit during his 26th week in office.

NATO Secretary-General Mark Rutte is set to meet President Donald Trump this week on the heels of the U.S. leader announcing plans to sell NATO allies weaponry that they can then pass on to Ukraine.

Ivo Daalder, a senior fellow at Harvard Belfer Center, says that President Donald Trump realizes that he needs to change course because the Russian leader has been playing him "for years."

President Donald Trump has softened his stance on NATO. He once called the Western alliance "obsolete." Now, he says, it's the "opposite of that."

During his campaign, Trump said bringing a quick end to the war was a top priority and that helping Ukraine was a waste of US taxpayer money.