如何划定俄乌边界、谁来提供安全保障？美乌欧白宫讨论乌克兰危机

Core Points - The meeting between US President Trump and Ukrainian President Zelensky is seen as a pivotal moment in the ongoing Russia-Ukraine conflict, with significant implications for Ukraine's future and European security [1][3] - European leaders' participation in the talks aims to ensure a unified stance and protect European interests in the peace negotiations, preventing any unfavorable outcomes for Ukraine [1][3][7] - Trump has set a challenging tone for the discussions, indicating that Ukraine's NATO membership is off the table and that Crimea cannot be reclaimed [3][4] Group 1: Meeting Context - The meeting is described as the most important moment in accelerating the end of the conflict since its outbreak in 2022, with leaders from multiple European nations attending [1][3] - Prior to the meeting, European leaders held preparatory discussions with Zelensky to strategize on the upcoming talks [3][7] Group 2: Security Guarantees - Key topics for discussion include defining borders, providing long-term security guarantees for Ukraine, and establishing military alliances [5][6] - The US may offer security guarantees similar to NATO's Article 5, but not through NATO itself, which is seen as a compromise by Russia [5][6] Group 3: European Concerns - There are ongoing discussions within Europe about a multi-layered security framework, with some countries considering deploying security forces in Ukraine for training and logistics [8] - European leaders emphasize that any agreements should not compromise European interests, highlighting the need for European involvement in negotiations [7][8]