Trump's sudden shift on Kyiv shakes the transatlantic alliance, prompting European leaders to cross the ocean in a urgent effort to strengthen it. Fears grow in European capitals that the post-World War II alliance is on the verge of collapse as Trump holds talks with Russian President Vladimir Putin. French President Emmanuel Macron and British Prime Minister Keir Starmer meet separately with U.S. President Donald Trump at the White House this week, trying to persuade him to continue supporting Ukraine. This marks a sharp shift from the Joe Biden administration’s strategy of backing Ukraine and distancing Russia. The move threatens NATO unity and puts pressure on US-EU relations. The Center for Strategic and International Studies (CSIS) states that Trump’s team seeks a “grand bargain” with Russia, which could redefine global power dynamics, arms agreements, and resource control.