The current Iran war has been described as a contest of advanced military technology. And by that measure, the United States and Israel possess overwhelming advantages. Their air forces dominate the skies, their intelligence networks provide unprecedented surveillance, and their strike capabilities can reach deep inside Iranian territory.

But military superiority alone is unlikely to decide this war. Iran is not a target that can be pounded into submission from the air. The deeper logic of the conflict lies in geography.

Iran’s current strategy, with its emphasis on endurance and imposing costs on its adversaries over time, reflects the structural realities of its territory. Unlike many regional states whose strategic options are constrained by their limited territory, Iran has vast interior space and formidable natural barriers. Smaller states in the Gulf region, whose economic infrastructure sits directly along the coast, remain far more exposed to rapid military pressure.

By contrast, Iran’s mountainous interior—dominated by the Zagros and Alborz ranges and the plateau that runs between them—creates natural defensive barriers that would complicate a large-scale ground invasion. Historically, these mountain chains have served as strategic shields, slowing and exhausting invading forces for centuries, from the difficulties faced by Mark Antony’s Roman armies in 36 B.C. in penetrating the Iranian plateau to the stalling of Iraq’s advances along the Zagros front during the 1980-88 Iran-Iraq War.

These constraints significantly shape strategic possibilities today. The geographic difficulty of invading Iran means that the war is unlikely to be decided through a conventional ground campaign. The 2003 invasion of Iraq required more than 300,000 U.S. troops for the initial campaign, followed by a peak occupation force of around 160,000, while Afghanistan saw a peak of roughly 100,000 troops amid a far less densely populated and smaller theater.

Yet Iran presents a far more demanding challenge. It is nearly four times larger than Iraq and has a population of more than 90 million. An occupation would likely require a significantly larger force, longer supply lines, and far greater financial and political commitment than either Iraq or Afghanistan. In effect, even the most resource-intensive U.S. occupations of the past two decades would represent only a lower-bound comparison for what a sustained ground campaign in Iran would entail.

That is why the war is unfolding primarily through airpower and maritime pressure. But Iran’s geography continues to matter: While U.S. and Israeli airpower can reach most of Iran, operational depth varies significantly across the country. The most accessible targets lie in western and southwestern Iran—Khuzestan, Bushehr, and the Zagros front at the border of Iran and Iraq—where proximity to the Persian Gulf and existing basing infrastructure allows for higher sortie rates and sustained strike cycles.

By contrast, as one moves farther east and deeper into Iran’s central plateau—into the provinces of South Khorasan and Yazd and the northern parts of Kerman and Sistan and Baluchestan—the operational environment becomes more demanding. These regions sit farther from maritime launch points and regional airbases and are buffered by distance, terrain, and thinner infrastructure. Sustaining high-frequency operations over these areas requires longer flight times, more complex aerial refueling, and greater logistical coordination, reducing both the tempo and persistence of strikes.

This does not make eastern Iran immune, but it does reduce the tempo, persistence, and reliability of any strikes there compared w western and southern Iran. And Iran’s rugged terrain also creates opportunities for the dispersal, concealment, and relocation of nuclear and military infrastructure. Nuclear facilities or stockpiles moved deeper into mountainous or remote eastern locations will be harder to detect, target, and repeatedly strike, much less comprehensively destroy.

But geography matters not only on land. It also shapes the war at sea. Iran’s proximity to critical maritime chokepoints provides it with a form of asymmetric leverage that technology alone cannot easily neutralize. Nowhere is the power of geography more visible than in the Strait of Hormuz. If Iran’s geography makes a quick military victory difficult, its position along the strait gives it another form of leverage: the ability to impose global economic costs even without winning on the battlefield.

Located between Iran and the Arabian Peninsula, this narrow maritime corridor connects the Persian Gulf to global energy markets. At its narrowest point, the strait is only about 21 nautical miles wide, and the actual tanker lanes used for shipping are only a few miles across. Despite this narrow geography, roughly one-fifth of the world’s oil consumption and a large share of global liquefied natural gas trade pass through this single passage.

Prolonged disruptions can ripple across global energy markets. The mere perception of risk in the strait can trigger spikes in oil prices, surges in shipping insurance premiums, and disruptions to global supply chains, as the last two weeks have shown. Maritime logistics is driven not only by physical security but also by perceived risk: If shipping companies believe the strait is unsafe, tanker traffic slows or reroutes.

Attempting to remove this geographic advantage from Iran would require far more than targeting a single node like Kharg Island. While Kharg represents a critical economic bottleneck, handling roughly 90 to 96 percent of Iran’s crude exports, it does not determine control over the Strait of Hormuz itself.

Control of the strait is instead rooted in Iran’s broader geographic position: a coastline stretching nearly 1,500 miles along the Persian Gulf and Gulf of Oman, combined with proximity to key islands and chokepoints that enable layered, asymmetric pressure. Even if Kharg were occupied or disabled, Iran would still retain the ability to threaten maritime traffic through missiles, drones, naval mines, and fast-attack craft deployed along this coastline.

In practice, Iran does not need full control of its coastline to exert influence over the strait; it only needs to maintain sufficient capability to create uncertainty and risk. As a result, neutralizing Iran’s geographic advantage would require sustained dominance across a wide maritime theater, something far more complex and costly than seizing a single island.

In effect, what began as a campaign aimed at regime change, and the dismantling of Iran’s nuclear and missile capabilities, is increasingly drifting toward a strategic stalemate centered on the Strait of Hormuz. What was initially conceived as a coercive, swift air campaign has collided with geography. The strait has emerged as a constraining space, with consequences that extend far beyond the battlefield into global energy markets, supply chains, and financial flows.

The strategic weight of Hormuz is so immense that if Iran manages to assert effective control over it, even the loss of its roughly 400 kilogram stockpile of enriched uranium would not necessarily amount to strategic defeat. Control over the strait could, in effect, redefine the criteria by which the outcome of the war is assessed. What’s already clear is that the future of the Strait of Hormuz will not resemble its past. It will be either firmly shaped by Iran’s control or defined by a new order in which Tehran’s role is significantly diminished.

And Hormuz is only part of a broader geopolitical system. The second chokepoint shaping the trajectory of the war lies farther west at the Bab el-Mandeb, the narrow passage connecting the Red Sea to the Gulf of Aden. For nearly two decades, and especially since the start of the Israel-Hamas war in October 2023, this corridor has been exposed to repeated disruption by the Houthis in Yemen, a nonstate actor aligned with Iran whose maritime attacks have periodically threatened commercial shipping in the Red Sea. Through the Houthis, Iran has planted the seeds of its revolutionary influence in a strategic chokepoint where geography converts ideology into geopolitical leverage. If tensions spill over into this maritime chokepoint, the economic consequences could spread far beyond the immediate battlefield. Bab el-Mandeb exposes the fragility of the maritime network linking the Red Sea to global trade.

Its fragility lies in both its geography and its lack of viable alternatives. At its narrowest point, the Bab el-Mandeb is only about 20 miles wide, forcing global shipping into tightly constrained lanes that are highly vulnerable to disruption by missiles, drones, naval mines, or even limited harassment. Unlike other chokepoints, there are few efficient rerouting options, as any sustained disruption would compel vessels to detour around the Cape of Good Hope, adding 10 to 15 days to transit times and significantly increasing fuel, insurance, and freight costs.

Roughly 10 to 12 percent of global trade and 6 million to 9 million barrels of oil per day pass through this strait. Even a partial disruption can trigger cascading effects, from surging shipping insurance premiums to supply chain delays and higher global energy prices, underscoring how a localized conflict can quickly translate into systemic shocks across the global economy. Indeed, the geography of the Middle East creates the possibility that a regional war could produce a systemic disruption of maritime trade.

The strategic implication is profound. The decisive struggle in the Iran war may ultimately take place not in the skies above Iran or Israel but in the narrow waterways. It is unfolding across a wider geopolitical theater defined by maritime corridors, supply chains, and energy flows. Control of territory and airspace matters, but control of chokepoints may matter more.

The longer the war continues, the more consequential these structural dynamics. Technological superiority can produce impressive tactical successes, but it cannot erase geography. Mountains cannot be bombed away, and chokepoints cannot be relocated. These enduring features of the strategic landscape shape how wars unfold.

The Iran war therefore highlights a deeper and broader lesson about modern conflict. In an era of artificial intelligence, cyberwarfare, satellites, and autonomous precision weapons, geography still exerts profound influence over the course of war. Mountains and terrain barriers limit the feasibility of invasion. Strategic maritime chokepoints amplify asymmetric leverage. Energy corridors connect local conflicts to the global economy. Technology may shape how the war is fought, but geography will often shape how, and whether, it ends.

When Napoleon Bonaparte invaded Russia in 1812, he was defeated by “General Winter” and “General Space,” as Russians later said. Today, Iran may also have two hidden generals: “General Geography,” which commands Iran’s mountains and maritime chokepoints, and “General Endurance,” its ability to absorb shocks and fight a long war.