Lessons from a Hypothetical US-Iran Conflict
An analysis of a potential war between the United States and Iran, conducted by Max Boot, a fellow at the Council on Foreign Relations (CFR), has uncovered serious shortcomings within the Pentagon's systems. The study found that low-cost Iranian drones proved more effective in combat than their expensive American counterparts. Ukraine has emerged as a key benchmark in drone production and deployment, highlighting critical gaps in U.S. strategy and air defense capabilities.
Weaponry and Iranian Retaliation
During the simulated conflict, the U.S. launched over 850 Tomahawk cruise missiles and PrSM missiles, which have a range of roughly 300 kilometers. Within the first month of fighting, the U.S. and Israel struck 13,000 targets inside Iran, resulting in the death of Iran's Supreme Leader, Ayatollah Ali Khamenei. However, the entire U.S. Army stockpile of PrSM missiles was exhausted in a single Iranian campaign, raising serious concerns about American ammunition reserves. In response, Iran blocked the Strait of Hormuz and launched thousands of Shahed drones; the most common variant boasts a range of up to 2,400 kilometers and costs around $35,000. This stands in stark contrast to U.S. Patriot missiles, priced at $3.4 million each, and THAAD interceptors, which cost $12.7 million per unit.
Research indicates that Ukraine, which has built a dedicated drone army since 2022, has achieved impressive results using cheap interceptor drones costing as little as $1,000. These systems have been able to shoot down over 90 percent of Russian Shahed drones. Meanwhile, the entire U.S. military possessed only 16,000 drones in 2026, though the Hegseth program aims to boost that number to 300,000 by 2027. In contrast, Ukraine plans to produce seven million drones in 2026 alone, underscoring America's lag in drone manufacturing.
The U.S.-Iran war scenario showcased America's precision-guided weapons, but the key takeaway is that inexpensive drones outperformed costly U.S. systems. Experts warn that in the event of a conflict with China, the U.S. could run out of ammunition within a week, casting doubt on the effectiveness of American strategy. As retired four-star Marine General James Mattis noted:
“Hitting targets never substitutes for strategy.”
In light of these challenges, U.S. Defense Secretary Pete Hegseth emphasized that
“death and destruction from the sky”have become a reality of modern warfare. Consequently, the U.S. faces an urgent need to rethink its strategies in order to adapt to an era where drones and unmanned technologies are playing an increasingly dominant role in conflict.
The conclusions drawn from this analysis of a U.S.-Iran war underscore the critical importance of adapting military strategies to new technological realities. The growing effectiveness of drones—used by both adversaries and allies—points to potential vulnerabilities in traditional U.S. military approaches. This may compel American military leadership to reconsider its weapons development and combat doctrines in a landscape where drones are becoming ever more dominant on the battlefield.
The findings from the analysis not only highlight the Pentagon's vulnerabilities in a potential conflict with Iran but also raise concerns about the U.S. military's overall readiness. This is particularly relevant in light of recent reports on the shortage of missiles impacting U.S. preparedness for a possible war with China. Understanding these challenges across different theaters of conflict underscores the urgent need for strategic reassessments.