By Nearly Every Metric, the U.S. Is Losing the Iran War

Foreign Policy | John Haltiwanger

The United States has failed to achieve its primary strategic objectives in its ongoing conflict with Iran, suffering an irrefutable defeat across nearly every key metric as of September 2026. This strategic setback severely undermines American foreign policy in the Middle East during Trump’s second term, leaving Washington with diminished regional influence.

The strategic impasse highlights the limits of economic and diplomatic pressure campaigns against Tehran's regional network. The geopolitical consequences of this development directly impact the broader crisis in the Middle East and U.S. foreign policy. This situation intersects with other global challenges, including the war in Ukraine, trade and economics, artificial intelligence, and U.S.-China competition. The regional security landscape remains highly volatile. Moving forward, these unresolved tensions present escalating risks for national security policy, trade dynamics, and international relations, highlighting the limits of American influence in the region.

Comment

The apparent collapse of Washington's deterrence strategy against Tehran exposes a fundamental flaw in U.S. Central Command's reliance on punitive standoff strikes. By prioritising economic sanctions and localised naval deployments, such as Operation Prosperity Guardian, the United States failed to degrade the Islamic Revolutionary Guard Corps' asymmetric capabilities. This doctrinal reliance on carrier strike groups and standoff munitions has proved insufficient to counter the Islamic Revolutionary Guard Corps' Quds Force. Consequently, the strategic initiative in the Persian Gulf has shifted toward Tehran's decentralised command structures.

This shift forces a reassessment of how the Pentagon allocates precision-guided munitions across competing combatant commands. As U.S. Central Command remains bogged down in low-intensity maritime skirmishes, the transfer of advanced munitions to the U.S. Indo-Pacific Command is delayed. Ultimately, the prolonged deployment of assets like the USS Dwight D. Eisenhower in the Red Sea directly constrains Washington's ability to deter Chinese naval expansion.

Strategic Question for Discussion

If the prolonged deployment of assets like the USS Dwight D. Eisenhower in the Red Sea becomes a permanent operational requirement, how will the Pentagon balance the resulting readiness deficits against the deterrence requirements of the U.S. Indo-Pacific Command?

The current trajectory indicates that the Pentagon will likely be forced to accept higher operational risks in the western Pacific, as sustained carrier presence in the Middle East depletes the available rotation pool. My assessment is that this deficit will accelerate the transition toward land-based missile systems and unmanned platforms to maintain a credible deterrent against Chinese maritime forces. This shift ultimately highlights how regional containment failures in one theatre directly degrade global force projection capabilities.

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