Iran’s IRGC claims strikes on oil tankers and US-linked vessels in Strait of Hormuz

The recent claims by Iran's Islamic Revolutionary Guard Corps (IRGC) Naval Force regarding strikes on oil tankers and US-linked vessels in the Strait of Hormuz represent a significant escalation in the long-standing Iran-US tensions that have defined West Asian geopolitics for decades. To understand this development, we must trace its roots to the 1979 Iranian Revolution, which transformed Iran from a key US ally under the Shah into an anti-Western theocratic republic. The subsequent US Embassy hostage crisis (1979-1981), the Iran-Iraq War (1980-1988) where the US supported Saddam Hussein, and the 1988 downing of Iran Air Flight 655 by USS Vincennes created deep structural mistrust. The immediate context involves the 2018 US withdrawal from the Joint Comprehensive Plan of Action (JCPOA) — the Iran nuclear deal — under the Trump administration's "maximum pressure" campaign, reimposing crippling sanctions on Iran's oil exports. Iran responded by gradually breaching JCPOA limits on uranium enrichment. The Strait of Hormuz, a 33-km wide channel at its narrowest point connecting the Persian Gulf to the Gulf of Oman and Arabian Sea, handles approximately 20-21 million barrels per day — roughly 20% of global oil consumption and 35% of seaborne oil trade. This makes it the world's most critical energy chokepoint, alongside the Strait of Malacca and Suez Canal. Key stakeholders include: (1) Iran's IRGC, designated a Foreign Terrorist Organization by the US in 2019, which views asymmetric naval warfare as a deterrent against superior US conventional forces; (2) The United States, maintaining the Fifth Fleet in Bahrain and leading the International Maritime Security Construct (IMSC) since 2019 to protect commercial shipping; (3) GCC states (Saudi Arabia, UAE, Qatar) heavily dependent on Hormuz for exports; (4) Major energy importers — China, India, Japan, South Korea, and Europe; and (5) Global shipping and insurance industries facing skyrocketing war-risk premiums. For India, the implications are profound and multifaceted. India imports over 85% of its crude oil, with historically 10-15% sourced from Iran (pre-2019 sanctions). The 2019 US sanctions waiver expiry forced India to zero out Iranian imports, diversifying to Iraq, Saudi Arabia, UAE, and the US. However, any Hormuz disruption affects global prices regardless of source. The 2022-23 oil import bill exceeded $157 billion, widening the Current Account Deficit. Higher prices fuel domestic inflation, complicating RBI's monetary policy under the Flexible Inflation Targeting Framework (FITF) mandated by the RBI Act, 1934 (amended 2016). Strategically, India's Chabahar Port investment in Iran — exempted from US sanctions under the 2018 Afghanistan reconstruction waiver — serves as a gateway to Central Asia bypassing Pakistan, linking to the International North-South Transport Corridor (INSTC). Instability threatens this connectivity vision. Constitutionally, Article 51 of the Directive Principles of State Policy mandates the State to "promote international peace and security" and "foster respect for international law." Article 253 empowers Parliament to implement international treaties. The United Nations Convention on the Law of the Sea (UNCLOS), 1982 — ratified by India in 1995 — governs maritime rights. The Strait of Hormuz falls under "transit passage" regime (UNCLOS Part III, Articles 37-44), guaranteeing freedom of navigation for all states. Iran's "unauthorised route" claim lacks legal basis under UNCLOS. India's consistent position at UN forums upholds freedom of navigation and peaceful dispute resolution. Broader themes include: the erosion of rules-based maritime order; the limits of US security guarantees in an era of strategic competition with China; the vulnerability of critical infrastructure to asymmetric threats (drones, mines, missiles); and the energy transition's geopolitics — while the world moves toward renewables, oil remains central for decades. The incident also highlights the IRGC's growing role as a state-within-a-state, controlling Iran's missile program, regional proxies (Hezbollah, Houthis, Iraqi militias), and economic empire. Future implications: Expect continued "grey zone" warfare — plausible deniability attacks, cyber operations, proxy escalation in Yemen (Red Sea), Iraq, and Syria. The 2024 US election cycle may constrain Biden's response options. India must accelerate strategic petroleum reserves (SPR) — currently 5.33 MMT at Visakhapatnam, Mangalore, Padur — and diversify energy sources (renewables, nuclear, Russian oil). Diplomatic engagement through the India-Iran Joint Commission and multilateral forums (SCO, BRICS, IORA) remains crucial. The incident underscores that in an interconnected world, a crisis in a narrow strait 2,500 km from Mumbai reverberates through India's petrol pumps, fiscal balance, and strategic autonomy.