Trump Thought Iran War Would Be Cakewalk. Five Reasons Why He Was Wrong

Last Updated:March 12, 2026, 12:59 IST

What was supposed to be a controlled military operation has instead turned into a volatile regional crisis, raising questions within America about the purpose, if any, of the war

When the United States launched strikes against Iran, the war was expected to be short, decisive and limited. At least, that was the assumption of the Donald Trump administration.

But 12 days into the West Asia conflict, that assumption is increasingly being questioned. A report by The New York Times suggests that the White House misjudged several key factors—from Iran’s willingness to retaliate to the economic shockwaves the war would unleash.

What was supposed to be a controlled military operation has instead turned into a volatile regional crisis, raising questions within America about the purpose, if any, of the war.

Here are five major strategic miscalculations that shaped the course of the Iran war:

1. Underestimating Iran’s Response: As per the NYT report, the biggest miscalculation was assuming Iran would respond weakly or not at all. US planners believed that large American and Israeli strikes would shock and deter Iran, forcing it to scale back. Instead, Iran launched missile and drone attacks on US bases and allies across the Middle East. Tehran also activated its regional proxy network, widening the battlefield beyond Iran itself. Analysts quoted in the article say Washington underestimated how Iran would treat the conflict as an existential threat, prompting a far stronger retaliation than expected.

2. Misreading the Oil Market Fallout: Another key assumption was that energy markets would only face temporary disruption. Before the war, some officials argued oil prices would spike briefly and then stabilise. But the opposite happened: Oil prices surged amid fears of supply disruption. Energy markets saw extreme volatility, with rapid price swings linked to developments in the conflict. Higher oil prices raised gasoline costs and created economic pressure in the US and globally. This miscalculation showed how vulnerable the global economy is to shocks in the Middle East.

3. Ignoring the Risk to the Strait of Hormuz: The administration also underestimated Iran’s ability to threaten the Strait of Hormuz, one of the world’s most critical oil shipping routes. Roughly 20 per cent of global oil supply passes through this narrow waterway. As Iran signalled it could target tankers or block shipping lanes, shipping in the Persian Gulf slowed sharply as companies feared attacks. This dramatically increased global energy risks and forced emergency efforts to stabilise markets.

4. Overconfidence About Regime Change: Some policymakers believed that heavy strikes could destabilise Iran’s leadership and potentially lead to regime change. The expectation was that killing or weakening key leaders would fracture the political system, or internal protests would topple the government. But Iran’s political and military institutions proved far more resilient than expected. The leadership remained intact even after the assassination of Ayatollah Ali Khamenei and the war instead strengthened nationalist sentiment inside the country. Experts note that external military pressure often strengthens authoritarian regimes rather than collapsing them.

5. No Clear Exit Strategy: Perhaps the most serious criticism is that the administration planned how to start the war but not how to end it. Key problems include an unclear definition of victory and shifting goals—from limited strikes to demands for “unconditional surrender". America also created no detailed diplomatic roadmap to end hostilities. Even inside Washington, advisers have reportedly urged the White House to find an “exit ramp" to avoid a prolonged conflict and political backlash.

News world Trump Thought Iran War Would Be Cakewalk. Five Reasons Why He Was Wrong

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