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A narrow stretch of water—the Strait of Hormuz—is the lynchpin of 20% of the world’s oil trade, and Iran controls its northern edge. This small but strategic position catapults Iran into outsized influence, weaving together energy markets, geopolitics, and security concerns in a way few nations can rival.
The Strait of Hormuz: Iran’s Potent Leverage Point
Iran’s control of the northern side of the Strait of Hormuz is much more than a geographical fact. This waterway acts as a gatekeeper for nearly one-fifth of all global oil shipments every single day. Encompassing exports from Saudi Arabia, the UAE, Kuwait, and Qatar along with Iran’s own oil, this slim corridor is arguably the world’s most vital energy bottleneck. By holding sway over this chokepoint, Iran wields strategic clout that far exceeds its physical or economic size. This is the very essence of Rimland power — where geography becomes geopolitics in its most direct form.
Fueling China and Russia Beyond US Sanctions
Iran’s significance extends beyond the chokehold on the Hormuz Strait. It acts as a critical supplier of inexpensive oil to China and Russia — both nations at odds with US interests. What makes Iran particularly challenging for the US is that these energy flows largely fly under the radar of Washington’s enforcement mechanisms. This undermines the potency of American sanctions and bolsters China’s and Russia’s resilience against US economic pressure.
Besides oil, since 2022 Iran and Russia have tightened their strategic relationship, with Iran providing drones, weapons, and military technologies undesirable to the US. This spirit of defiance and partnership threatens to reshape the balance of power outside the classic Western sphere, creating new fault lines that complicate diplomacy and security narratives.
Israel: The Hidden Chess Piece in Iran’s Strategy
Beyond energy and alliances, there’s a high-stakes security angle that colors US policy toward Iran: Israel. The United States treats Iran with a unique blend of caution and confrontation largely because of Iran’s perceived threat to Israel. Israel is not only a key US ally but is also among the largest purchasers of American military technology. In many ways, Israel serves as an extension of US strategic defense in the Middle East, operating as a proxy shield that allows the US to project power without overextending militarily.
Iran’s antagonism toward Israel keeps Washington on edge, intensifying sanctions, diplomatic pressure, and regional maneuvering.
Bypassing the Dollar and Pressuring Allies
Iran’s reach touches another critical front: it operates around the global settlement network dominated by the US dollar, thereby sidestepping traditional international financial systems. This circle-running erodes American economic influence and complicates efforts to isolate Iran through financial channels.
On the geopolitical chessboard, Iran’s influence even spreads to places like Venezuela, displaying a clear pattern of supporting allies that challenge US interests worldwide. This multipronged approach to power — geographic chokepoint control, strategic energy supply, alliance with adversarial regimes, and proxy conflicts — makes Iran a uniquely potent actor in today’s intertwined global landscape.
Why Iran Matters More Than Its Size Suggests
Iran may sometimes slip from daily headlines, but its impact on energy markets and geopolitics is anything but minor. Controlling the Strait of Hormuz gives it a veto over a critical artery of the global economy. Its oil exports empower rivals of the US and weaken sanctions. Its military alliances reinforce new power blocs challenging Western influence. And through its opposition to Israel, Iran touches the fundamental security arrangements that define the Middle East.
Understanding Iran’s role means grasping how geography, energy, and alliances come together in a complex ballet that shapes—not just disturbs—the global order.