俄乌，重大突发！

Group 1 - The article highlights the imminent threat of missile attacks across Ukraine, as reported by the Ukrainian Air Force, indicating that Russian MiG-31 aircraft have taken off [2][4] - Explosions were heard in Kyiv around 1:30 AM local time, confirming the ongoing attacks by Russian forces on the capital [3][4] - Ukrainian President Zelensky plans to meet with U.S. President Trump on the 28th to discuss security guarantees for Ukraine and other sensitive issues, including territorial matters [4][6][7] Group 2 - Zelensky stated that all contentious issues, including territorial disputes, will be raised during the meeting with Trump, emphasizing the need for a comprehensive discussion on security guarantees and economic agreements [7][11] - The new 20-point peace plan is reportedly 90% complete, but requires signatures from Ukraine, the U.S., Russia, and Europe to be finalized [7][16] - Trump expressed that Zelensky has nothing without his approval, positioning himself as a key figure in the peace negotiations, which suggests that Ukraine's future heavily relies on convincing Trump of their concessions [10][11] Group 3 - Zelensky indicated that if Putin agrees to a 60-day ceasefire, he would put the entire peace plan to a national referendum in Ukraine, although he acknowledged the political and logistical risks involved [12][14] - The proposed U.S. security guarantee for Ukraine is suggested to last 15 years, but Zelensky believes a longer duration is necessary for effective security [14] - Russian Deputy Foreign Minister Ryabkov commented that Ukraine's peace plan draft differs fundamentally from the 27 points discussed with the U.S., indicating a lack of alignment in negotiations [15][16]