Iran Conflict Threatens US Debt
The escalating U.S. military action against Iran is creating "yet another wobble" for the government bond market, warns UBS. Analysts are concerned that spiking defense spending combined with trade policy uncertainty could widen deficits and undermine global investor confidence in U.S. debt.
The joint U.S.-Israeli offensive, named "Operation Epic Fury," began on February 28, 2026. It has involved hitting hundreds of targets in Iran, including Revolutionary Guard facilities, air defense systems, and naval assets. President Trump stated the goal is to achieve regime change and address concerns about Iran's nuclear program. In response, Iran has launched hundreds of missile and drone attacks. These retaliatory strikes have targeted Israel and U.S. military bases in neighboring countries like Bahrain, Kuwait, Iraq, and Qatar. The conflict has led to the first U.S. combat deaths, with four service members killed in action. In a "friendly fire incident," Kuwaiti air defenses mistakenly shot down three American F-15 fighter jets, though the crews were recovered safely. This military escalation occurs as the U.S. national debt approaches $39 trillion. For the first time, federal spending on interest payments on the debt recently surpassed the entire defense budget. The government recorded a $1.78 trillion deficit in fiscal year 2025. In December, Congress authorized a record $901 billion in military spending. The conflict is now expected to make that spending "more urgent and less controversial," according to analysts. Defense stocks like Lockheed Martin and Northrop Grumman have surged since the strikes began. Geopolitical turmoil often creates a "flight to safety" where investors buy U.S. bonds, lowering government borrowing costs. However, a protracted conflict that disrupts energy and shipping can trigger inflation fears, which in turn pushes bond yields higher. The conflict has already snarled air travel across the Middle East and caused oil prices to spike. This raises concerns about wider economic disruption and the potential for increased costs for consumers and businesses globally.