The U.S. war with Iran is currently in a state of pause following the signing of a memorandum of understanding, which establishes a framework for negotiations over the next 60 days. While President Donald Trump has publicly characterized the situation as a victory, citing stable oil flows and economic growth, an analysis of the 100-day conflict reveals significant financial, military, and domestic costs, including the loss of 13 U.S. service members and over 7,500 civilian lives in the region.
Financial and Military Costs of the Conflict
The Department of Defense incurred approximately $40 billion in costs during the conflict, according to preliminary figures from the Center for Strategic and International Studies (CSIS). Mark Cancian, a senior advisor at the CSIS, noted that this estimate covers destroyed equipment, base damages, and ammunition, but excludes $1 trillion in operational costs already allocated in the 2026 fiscal budget. The Pentagon has requested $80 billion in supplemental funding, though a government source indicated that less than $20 billion of that total is tied to immediate war needs.
Ammunition expenses were a primary factor in the total cost, driven by the frequent use of high-end, long-range weaponry. According to Cancian, the U.S. military utilized nearly 1,000 Tomahawk missiles, each valued at approximately $2.5 million. In response to the depletion of key missile inventories, President Trump invoked the Defense Production Act in early June to accelerate domestic manufacturing.
The U.S. strategic petroleum reserve, housed in Gulf Coast salt caverns, has reached its lowest level since 1983 due to a combination of releases during the Russia-Ukraine war under the Biden administration and the conflict with Iran under the Trump administration.
Energy Prices and Economic Impact
The war contributed to a sustained increase in energy costs for American households. Gasoline prices rose from a national average of under $3 per gallon to well over $4 for much of the conflict, with the average sitting at $3.97 as of June 16. Data from a Brown University energy cost tracker indicates that U.S. households spent over $253 more on gasoline than they would have in the absence of the war. Diesel prices, which impact the agriculture and shipping sectors, saw a sharper increase, rising from $3.80 per gallon pre-war to over $5 by June 15.
Supply chain pressures were exacerbated by the closure of the Strait of Hormuz, which blocked oil transit for nearly four months, resulting in a global supply loss of 1.15 billion barrels, according to Kpler. A critical storage hub in Cushing, Oklahoma, reached a low of 20 million barrels of oil, a level described by observers as an operational stress point. While the administration lifted sanctions on Russian and Iranian oil and coordinated with 32 countries for an emergency reserve release, domestic prices remained elevated.
The disconnect between the administration’s optimistic rhetoric and the economic data—such as inflation exceeding 4% and real wages failing to keep pace with rising costs—suggests a complex recovery period. While the pause in hostilities may eventually stabilize energy markets, the depletion of domestic reserves and the Federal Reserve’s commitment to maintaining high interest rates indicate that the economic shock of the conflict will likely persist for consumers.
Market Stability and Consumer Sentiment
Despite the economic pressures of the war, stock markets have continued to reach record highs, bolstered by major IPOs in the artificial intelligence and aerospace sectors. However, the Federal Reserve has maintained high interest rates to combat inflation, which reached its highest annual level in three years. Federal Reserve Chairman Kevin Warsh indicated in his first meeting last week that the central bank intends to maintain a firm stance on price controls, which analysts expect could keep mortgage rates elevated.
Consumer sentiment remains depressed, with the University of Michigan’s long-standing survey showing levels well below historical averages. President Trump’s approval rating, which was below 40% in February, remained at 37% as of June 15, according to the CNN Poll of Polls. Recent polling from Fox News further indicates that only 31% of registered voters approve of his management of the economy, while 35% approve of his handling of the war.
Frequently Asked Questions
How much did the war cost the Department of Defense?
The conflict cost the department approximately $40 billion, according to preliminary analysis by the CSIS, a figure that excludes standard operational costs already budgeted for fiscal year 2026.
Why are gasoline prices high despite the war being in a pause?
While oil transit through the Strait of Hormuz is expected to resume, the market remains affected by the previous four-month supply disruption and the depletion of domestic reserves to their lowest levels since 1983.
What is the status of the U.S. military’s weapon supply?
The military utilized significant portions of its key missile inventory, including nearly 1,000 Tomahawk missiles. President Trump invoked the Defense Production Act in early June to force defense contractors to increase production.
What long-term effects might the current energy and inflation trends have on U.S. agricultural production?
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