报道称美国解除乌克兰用远程导弹关键限制，原油拉升，盘中涨超4%

Core Viewpoint - The Trump administration has lifted a key restriction on Ukraine's use of Western-supplied long-range missiles, allowing Ukraine to enhance its attacks on targets within Russia [1][3]. Group 1: Policy Changes - The policy adjustment aims to increase pressure on the Russian government to end the conflict with Ukraine, with expectations that Ukraine will use the "Storm Shadow" missiles for more cross-border attacks [3]. - Approval authority for such cross-border strikes has shifted from the U.S. Secretary of Defense to the U.S. European Command, led by General Alexus Grynkewich [4]. - Previously, the use of U.S. missiles or Western missiles relying on U.S. targeting data required approval from the Secretary of Defense, which has now been returned to the European Command [5]. Group 2: Military Actions - Ukrainian forces conducted a large-scale airstrike on a chemical plant in Russia's Bryansk region, using the "Storm Shadow" missiles to successfully hit a key facility for producing explosives and rocket fuel [3]. - The "Storm Shadow" missiles have a range exceeding 180 miles, which allows Ukraine to expand its attack capabilities against Russian targets [3][7]. Group 3: Diplomatic Context - The missile policy change coincides with Trump's earlier push for negotiations to pressure Russia, although he had previously considered providing Ukraine with longer-range "Tomahawk" missiles but later abandoned the idea [3][7]. - Trump expressed interest in meeting with Russian President Putin to discuss ending the conflict, but recent meetings have been postponed, indicating a lack of readiness for serious negotiations from both sides [8].