Group 1: Core Insights - The meeting between US President Trump and Ukrainian President Zelensky focused on the latest version of the 20-point "peace plan" regarding the Ukraine crisis, but no substantial breakthroughs were achieved on key issues [1][2] - Territorial disputes remain a major sticking point, with Russia emphasizing its goal of full military control over Eastern Ukraine, while Ukraine proposed mutual troop withdrawals and the establishment of a buffer zone supervised by international forces [2][3] - Ukraine's security guarantees are heavily reliant on European military and financial support, with European leaders viewing Ukraine's security as critical to the new European security order [3] Group 2: Diplomatic Signals - The limited progress from the meeting signals a potential key window for diplomatic negotiations to resolve the Ukraine crisis as it approaches its four-year anniversary [4] - Future discussions are planned, with US and Ukrainian officials set to continue negotiations on sensitive matters, and a meeting of European leaders regarding support for Ukraine is scheduled for January [4] - The success of US-Ukrainian negotiations will depend not only on resolving difficult issues but also on the acceptance of outcomes by other involved parties [4][5]