Group 1 - Ukraine faces missile attack threats as Russian MiG-31 aircraft are airborne, leading to strong explosions reported in Kyiv [1] - Ukrainian President Zelensky plans to meet with US President Trump on the 28th to discuss security guarantees and sensitive issues, including territorial matters [2][3] - Zelensky states that the new 20-point peace plan is 90% complete and emphasizes the need for discussions on security agreements with the US [3] Group 2 - Trump believes the upcoming meeting with Zelensky will go smoothly but asserts that "Zelensky has nothing without my approval," indicating his role as a key decision-maker in the peace process [4][5] - Zelensky proposes a nationwide referendum on the peace plan if Putin agrees to a 60-day ceasefire, highlighting the political and logistical challenges of such a vote [6][7] - Russian Deputy Foreign Minister Ryabkov claims that Ukraine's peace plan draft differs fundamentally from the 27 points discussed with the US, suggesting a lack of alignment in negotiations [10]

Core Viewpoint - The article discusses the necessary conditions for a legal commitment to support Ukraine, emphasizing the need for U.S. Congressional approval and the nature of collective defense under NATO's Article 5 [1] Group 1 - The support must be approved by a vote in the U.S. Congress to become a legally binding commitment [1] - The commitment should embody the collective defense nature of NATO's Article 5 [1] - Ukraine requires clarity on how partners will respond to any future military actions by Russia [1] Group 2 - Specific details of the agreement include provisions for weapon supplies, military strengthening, and the size of the Ukrainian military [1] - Ukraine aims to maintain a military size of at least 800,000 personnel [1] - Procurement details are still being finalized and cannot be publicly discussed at this time [1]