英国拒绝特朗普使用其空军基地打击伊朗，称此举或违反国际法

Core Viewpoint - The UK Prime Minister Keir Starmer has denied President Trump's request for the use of British military bases for potential preemptive strikes against Iran, citing concerns over international law violations [2][4]. Group 1: UK-US Base Usage Dispute - The UK has refused the US access to the RAF Fairford base and Diego Garcia for military actions against Iran, which are critical for US operations [2][3]. - The UK government is concerned that allowing the US to use these bases could implicate them in international law violations, as both the attacking and supporting nations could share equal responsibility [2][3]. Group 2: Historical Context of Base Usage - The usage of UK military bases by the US has historically followed a case-by-case approval process, with specific criteria not publicly disclosed [3][15]. - Decisions regarding foreign military base usage in the UK consider the legal basis and policy rationale of proposed actions [3][15]. Group 3: Diplomatic Tensions - Starmer and Trump discussed Middle Eastern and European peace issues during a phone call, which led to Trump's withdrawal of support for the UK-Mauritius agreement regarding the Chagos Islands [4][16]. - The Chagos Islands are significant as they host the Diego Garcia military base, and the agreement was intended to transfer sovereignty to Mauritius in exchange for a 99-year lease [5][17]. Group 4: Chagos Islands Controversy - The UK forcibly separated the Chagos Islands from Mauritius before its independence, leading to ongoing diplomatic tensions and legal disputes with displaced residents [19]. - The International Court ruled in 2019 that the UK should return the islands to Mauritius, prompting the UK government to pursue agreements to maintain military access while avoiding costly legal battles [19]. Group 5: Military Implications - Previous US military actions against Iran did not utilize Diego Garcia or RAF Fairford, with B-2 bombers flying from Missouri for a 37-hour round trip [10][22]. - Analysts predict that any future US military campaign against Iran could last weeks, and using bases closer to Iran would significantly enhance operational efficiency for US bombers [11][23].