乌称泽连斯基只接受与普京会谈！冯德莱恩、默茨：若俄不接受30天停火倡议，拟封锁北溪天然气管道二线！俄方回应

Group 1 - Ukrainian President Zelensky confirmed willingness to meet directly with Russian President Putin in Turkey, expressing gratitude for Turkish President Erdogan's support [1][2] - Putin proposed to resume direct negotiations between Russia and Ukraine on May 15 in Istanbul [2] - Russian officials, including spokesperson Peskov, rejected the idea of negotiations under "ultimatum" conditions, emphasizing that such an approach is unacceptable [3][6] Group 2 - Analysts suggest two main factors affecting the negotiations: whether Ukraine will revoke a law prohibiting talks with Putin and the extent of Ukraine's autonomy in the negotiation process [6] - U.S. analysts believe that Zelensky's announcement to wait for Putin in Turkey may be a strategic move to align with U.S. expectations, rather than a genuine intention to meet [8][10] - There is uncertainty regarding whether Putin will personally attend the meeting in Turkey, as it has been since December 2019 that the two leaders last met [12]