派遣特使 部署核潜艇 美国能否力压普京会晤泽连斯基

Group 1 - The U.S. is facing a deadline regarding potential sanctions against Russia, with high-level officials visiting both Russia and Ukraine to address the ongoing conflict [1][2] - U.S. Special Envoy for Middle East Affairs, David Satterfield, is expected to visit Russia, potentially to communicate U.S. measures if no progress is made in resolving the Russia-Ukraine conflict by the deadline [2][4] - Russia maintains its stance on the objectives of its military operations, emphasizing territorial control and Ukraine's neutrality regarding NATO [5][6] Group 2 - Ukraine is focusing on consolidating its domestic power and adopting asymmetric warfare strategies due to its unfavorable military position [6][7] - The diplomatic process among the U.S., Russia, and Ukraine is currently hindered by differing positions, increasing the risk of conflict escalation [8][9] - The U.S. has deployed two nuclear submarines to a "necessary area," which has heightened tensions, with Russia asserting that there are no winners in a nuclear war [8][9]