特朗普的最后通牒：安全保障“过时不候”

Core Viewpoint - Ukrainian President Zelensky has reached an agreement with the U.S. for legally binding security guarantees to advance peace negotiations with Russia [1][3]. Group 1: U.S. Involvement and Security Guarantees - The U.S. is willing to provide security guarantees similar to NATO's Article 5, but this comes with a "last ultimatum" for Ukraine to accept current conditions [1][6]. - A joint statement from European leaders supports U.S. efforts in peace negotiations and commits to assisting Ukraine in rebuilding its military and deterring Russia [3]. - U.S. officials express optimism about the peace talks, believing Russia will accept conditions that empower Ukraine [7]. Group 2: Negotiation Dynamics - Zelensky is prepared to abandon NATO membership in exchange for U.S. and European security guarantees, indicating a significant shift in Ukraine's stance [6]. - Despite progress on security guarantees, there is no consensus on territorial issues, and discussions about potential referendums have not yet occurred [6]. - Russia maintains a firm stance on territorial control and opposes any NATO presence in Ukraine, emphasizing that these are non-negotiable points [8].