特朗普称普京“玩火”，俄高官以“三战”回应，外界猜测“美俄关系生变”

Core Viewpoint - The escalating tensions between the U.S. and Russia, highlighted by President Trump's harsh criticism of President Putin, indicate a potential shift in U.S. foreign policy towards Russia, particularly in light of the ongoing conflict in Ukraine [1][3][7]. Group 1: U.S.-Russia Relations - Trump's recent statements suggest increasing frustration with Putin and the lack of progress in ceasefire negotiations between Russia and Ukraine [1][3]. - The U.S. is reportedly preparing new sanctions against Russia, which could mark a significant deterioration in U.S.-Russia relations since Trump's second term began [7][8]. - Russian officials, including Medvedev, have responded to Trump's comments by warning of the potential for a third world war, indicating the seriousness of the rhetoric being exchanged [3][4]. Group 2: Ukraine Conflict - Ukraine's President Zelensky has expressed readiness for a trilateral meeting with Trump and Putin to discuss ending the conflict, but this proposal was rejected by Russia [1][4]. - The situation on the ground remains dire for Ukraine, with reports of Russian forces capturing multiple villages in the Sumy region, indicating a potential escalation in military operations [4][5]. - Ukraine has launched its largest drone attack against Russia, but the reported losses for Russia were minimal, suggesting a disparity in military effectiveness [5]. Group 3: Military Preparations - Reports indicate that Russia has amassed over 50,000 elite soldiers near the Sumy region, potentially preparing for a summer offensive in Ukraine [5]. - The ongoing military actions and troop movements suggest that both sides are gearing up for continued conflict, with Ukraine seeking to bolster its defenses and capabilities [5][6]. Group 4: Diplomatic Efforts - Putin has outlined conditions for a ceasefire, including a written commitment from Western leaders to halt NATO's eastward expansion, which reflects the complexities of diplomatic negotiations [6]. - The U.S. media's speculation about new sanctions is seen by Russian officials as an attempt to undermine the negotiation process, highlighting the contentious nature of U.S.-Russia dialogue [7][8].