Analysis | Iran and the US Are Running Out of Room to Maneuver
As pressure mounts on Tehran and Washington faces growing military constraints, the next escalation could be shaped as much by time and resources as by strategy
CENTCOM activity in Iran, September 1st, 2026. Photo credit: U.S. Central Command/Handout via REUTERS
Iran’s hardline ruling faction is showing a determination to keep fighting, but the regime is facing constraints that could increasingly limit its ability to sustain the conflict. The United States, meanwhile, has its own limits, from the scale of its military deployment in the Middle East to mounting pressure on key weapons stocks.
In Iran, the regime has recently appointed senior figures from its “old guard,” including veterans of the Iran-Iraq War. That conflict began with Iran at a disadvantage, but Tehran eventually recovered. The regime may believe that the experience offers a model for the current confrontation.
Yet the Iran-Iraq War also ended with Tehran being forced to accept an unfavorable conclusion. The regime ultimately had to “drink the cup of poison” and agree to end the conflict. A similar outcome could await it now, potentially under even worse conditions.
Iran’s economic crisis is another growing vulnerability. The regime is concerned about the possibility of another wave of protests: when it might begin, how large it could become and whether it could evolve into an effort to overthrow the government. It must also consider whether opponents outside Iran will invest in strengthening the domestic opposition.
At the same time, Tehran may eventually struggle to pay its supporters. Combined with shortages of fuel, basic goods and other necessities, that could provide a powerful trigger for renewed unrest.
The Strait of Hormuz remains another pressure point. The United States has managed to allow some smaller tankers through, including by using security measures such as nighttime movement. The destruction of Iranian radar systems, launchers and other infrastructure in the area has helped facilitate the partial reopening of the strait, although it may prove temporary.
Several Gulf states, particularly the UAE, are developing alternatives to Hormuz, including oil pipelines. But the strait remains critical not only to global oil markets but to multiple economies.
Washington is simultaneously tightening economic pressure on Iran, including efforts to constrain its oil exports and access to revenues from sales to China. The war itself has also damaged Iranian oil infrastructure and made it harder for the regime to provide sufficient fuel to the population.
If another protest wave erupts, the United States and other countries, including Israel, could potentially intervene. As in Libya in 2011, they could argue that military action—primarily from the air—is necessary to prevent the regime from violently suppressing its population.
Washington, however, is also facing a clock of its own. The US Navy wants to reduce the number of ships deployed in the Middle East, while the 82nd Airborne Division and other forces remain in the region. Maintaining such deployments carries operational and financial costs, limits training and maintenance opportunities, and leaves Washington with fewer forces available if a major crisis erupts elsewhere.
There are already signs that Russia sees the United States as weakened by the war in Iran. Moscow, despite its own significant difficulties in Ukraine, is expected to continue its hybrid shadow war against NATO countries supporting Kyiv. A sudden Russian move against a NATO member could force Washington to redeploy forces from the Middle East, despite reservations in the US about deeper involvement in Europe.
China is assisting Iran, but it is unclear how far Beijing would go even if the Iranian regime appeared close to collapse. China has strong reasons to preserve its relationship with Tehran, including access to Iranian oil, but for now it also benefits from the United States being tied down in the Middle East and expending high-end munitions against Iran.
US military leaders are wary of another confrontation with Iran, which remains a secondary adversary for Washington. The concern is not only the continued commitment of forces but also depleted weapons stocks, including missile interceptors. Replenishing what has been fired could take many months—a particularly serious concern if the United States faces another major theater.
For Iran, that vulnerability could look like an opportunity to escalate. But exploiting it would carry enormous risks.
Ultimately, neither side has unlimited room to maneuver. For both Tehran and Washington, the question is no longer simply how much they want to escalate—but how long they can afford to keep doing so.