从石油争端到军事摊牌：美国对伊朗制裁的世纪演化与地缘博弈

Core Viewpoint - The article discusses the complex geopolitical and economic dynamics of U.S. sanctions against Iran, which have evolved over more than half a century, significantly impacting the Middle East, international law, and global energy markets [1]. Group 1: Origins of Sanctions - The seeds of sanctions were planted during the early Cold War, particularly after the nationalization of Iran's oil industry by Prime Minister Mohammad Mossadegh in 1951, which threatened British interests [3]. - The U.S. initially adopted a neutral stance but later intervened through the CIA's Operation Ajax to overthrow Mossadegh, leading to a long-term U.S.-Iran alliance under the Shah, which ultimately fostered resentment among the Iranian populace [3]. Group 2: Turning Point - The 1979 Iranian Revolution marked a significant rupture in U.S.-Iran relations, with the new regime rejecting Western influence and leading to the U.S. Embassy hostage crisis, which lasted 444 days [4]. - President Jimmy Carter's response included freezing approximately $12 billion of Iranian assets in the U.S. and imposing a comprehensive trade and financial embargo, establishing a legal framework for future sanctions [4]. Group 3: Escalation of Sanctions - In the 1990s, following the Cold War, the U.S. began to systematize and legislate sanctions against Iran, with the introduction of the Iran Trade Regulations (ITR) in 1995, which nearly banned all U.S. trade and investment with Iran [5]. - The Iran Sanctions Act (ISA) of 1996 expanded sanctions to non-U.S. entities, introducing secondary sanctions that penalized foreign companies investing in Iran's oil sector, thereby globalizing U.S. legal authority [6]. Group 4: Peak of Sanctions - During the Obama administration, sanctions became more multilateral and targeted, with the 2010 Comprehensive Iran Sanctions, Accountability, and Divestment Act leading to significant reductions in Iranian oil imports by major economies [8]. - The expulsion of Iranian banks from the SWIFT system in 2012 severely isolated Iran from the international financial system, contributing to economic distress and ultimately leading to the 2015 Joint Comprehensive Plan of Action (JCPOA) [8]. Group 5: Globalization of Sanctions - The U.S. sanctions have inspired a Western-led global sanctions network, with the EU, UK, and Canada implementing their own sanctions that align with U.S. objectives, particularly in areas like nuclear and missile technology [10][11]. - These sanctions create a compliance environment that deters international businesses from engaging with Iran, amplifying the impact of U.S. sanctions [11]. Group 6: Recent Developments - The Trump administration escalated sanctions to new heights, employing a strategy of economic pressure, diplomatic coercion, and military deterrence, including threats of high tariffs on countries importing Iranian goods [12][14]. - The military action "Operation Epic Fury" in 2026 marked a shift in sanctions from punitive measures to a comprehensive strategy that integrates economic warfare with military options [14]. Group 7: Legacy and Future Challenges - The historical effectiveness of sanctions is complex; while they have weakened Iran's economy and limited its nuclear ambitions, they have also strengthened the Iranian regime's narrative of resistance and led to significant suffering among the populace [15]. - The future efficacy of sanctions will depend on the U.S.'s ability to maintain its financial dominance and the extent to which major powers like China and Russia engage with or resist the sanctions framework [15].