Trump's new economic squeeze on Iran has big challenge: China

The Trump administration's renewed 'maximum pressure' campaign against Iran represents a critical chapter in contemporary geopolitics, where economic statecraft intersects with great power competition. To understand the current dynamics, we must trace the historical trajectory: the 2015 Joint Comprehensive Plan of Action (JCPOA), signed between Iran and the P5+1 (US, UK, France, Russia, China, Germany), offered sanctions relief in exchange for nuclear restrictions. However, the US unilaterally withdrew in May 2018 under President Trump, reimposing crippling sanctions targeting Iran's oil exports, banking sector, and shipping industry. The stated objectives were to curb Iran's nuclear ambitions, ballistic missile program, and regional proxy networks. Fast forward to 2025, and the geopolitical landscape has shifted dramatically. China has emerged as Iran's economic lifeline, importing over 1 million barrels per day of Iranian crude — often via 'dark fleet' tankers that disable transponders to evade detection. This trade persists despite US secondary sanctions threatening penalties on any entity facilitating Iranian oil transactions. The backbone of this relationship is the 25-year China-Iran Strategic Cooperation Agreement, signed in March 2021 during President Xi Jinping's visit to Tehran. Valued at approximately $400 billion, it encompasses energy, infrastructure, telecommunications, and port development — most notably Chinese investment in Iran's Chabahar Port and the Bandar-e-Jask oil terminal. For China, Iran provides secure energy supplies at discounted prices and a strategic foothold in the Persian Gulf, aligning with the Belt and Road Initiative's westward expansion. The key stakeholders are clear: the US seeks to maintain the credibility of its sanctions regime and constrain Iran's regional influence; Iran leverages Chinese partnership to survive economic strangulation and sustain its 'Axis of Resistance'; China pursues energy security, market access, and geopolitical leverage in a region traditionally dominated by the US. The upcoming US-China summit — expected to address trade imbalances, technology transfer, Taiwan, and now Iran sanctions enforcement — will test whether Washington can compel Beijing to curb Iranian oil imports without triggering broader economic retaliation. For India, this triangular dynamic carries profound implications. India historically balanced ties with both Iran and the US, but US sanctions forced New Delhi to zero out Iranian oil imports in 2019, ending a relationship that once supplied 10-12% of India's crude needs. This shift increased India's dependence on Saudi Arabia, Iraq, and the US for energy, impacting its strategic autonomy. Moreover, India's investment in Chabahar Port — a gateway to Afghanistan and Central Asia bypassing Pakistan — faces complications as Chinese involvement deepens. Under Article 246 and the Seventh Schedule of the Constitution, foreign policy remains a Union subject (Entry 10, List I), but energy security directly affects state-level concerns like power generation and industrial growth. The Petroleum and Natural Gas Regulatory Board Act, 2006, and the Strategic Petroleum Reserves framework further underscore the domestic policy dimensions. Broader themes emerge: the erosion of US-led financial hegemony as alternatives like China's CIPS (Cross-Border Interbank Payment System) gain traction; the weaponization of interdependence through secondary sanctions; and the reconfiguration of West Asian geopolitics with China mediating the Saudi-Iran rapprochement (March 2023). Future implications include potential US designation of Chinese banks under the Iran Sanctions Act, risking financial decoupling; deeper China-Iran-Russia alignment in forums like SCO and BRICS; and India's delicate balancing act — maintaining Quad commitments while preserving strategic projects like Chabahar and the International North-South Transport Corridor (INSTC). As the global order transitions toward multipolarity, this Iran sanctions saga exemplifies how energy, infrastructure, and great power rivalry converge — a critical case study for aspirants of international relations and strategic affairs.