French President Emmanuel Macron said on Monday that a trilateral summit involving Ukraine, Russia and the United States is "cardinal" to ending the war, but added that Europe must also sit at the table. Speaking after talks in Washington, Macron called for a “quadrilateral” meeting that would bring together Russian President Vladimir Putin, U.S. President Donald Trump, Ukrainian President Volodymyr Zelensky and senior European representatives. Macron argued that any peace agreement will hinge on security guarantees for the entire continent, making European participation indispensable. His remarks build on Trump’s recent statement that he is prepared to host a three-party meeting with Putin and Zelensky "if all goes well," which the U.S. leader said could offer “good chances” of halting the conflict. The proposal underscores renewed diplomatic maneuvering aimed at breaking the stalemate more than three years into Russia’s full-scale invasion of Ukraine. While no date or venue has been set, Macron’s call signals growing pressure on Moscow and Kyiv to engage in direct, high-level negotiations with U.S. and European backing.