President Trump has turned a corner on the Russia-Ukraine war this week, announcing a deal to send weapons to Ukraine via NATO and giving Vladimir Putin an ultimatum to make peace. Charles Kupchan, senior fellow at the Council on Foreign Relations,

Trump agrees to sell billions in US arms to NATO countries including Germany, Finland and Denmark and others for quick distribution to Ukraine, following his ultimatum to Putin on peace talks.

President Trump is hosting NATO Secretary General Mark Rutte at the White House on Monday as the U.S. agrees to sell new and more weapons to Europe and Ukraine.

Trump on Monday said the United States would ship "billions of dollars' worth" of military equipment to NATO members, paid for by the alliance, to be handed over to Ukrainian forces battling grinding Russian advances. Trump had earlier this month suggested NATO would "100 percent" pay for U.S. weapons, which would be sent to Ukraine.

Former Ukraine aid critics now back Trump's strategy requiring European funding for weapons to Kyiv after the president pivoted his frustration from Zelenskyy to Putin.

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."

In a somewhat unexpected phone interview with the BBC, President Trump said he's "disappointed but not done" with Russia's Vladimir Putin, adding, "I trust almost nobody"—a comment delivered shortly after Washington announced new weapons shipments to Ukraine and threatened tariffs on Russia if a ceasefire isn't reached within 50 days.

NATO Secretary General Mark Rutte discusses President Donald Trump's decision to sell weapons to NATO for Ukraine in an interview on 'Special Report.'

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."

Trump is having a hard time quitting Putin despite his uncharacteristically candid assessment of him during a July 8 Cabinet session, in which he admitted, “We get a lot of bulls*** thrown at us by Putin, if you want to know the truth. He’s very nice all of the time, but it turns out to be meaningless.”