The US has exhausted its stockpile of sophisticated long-range missiles during the war on Iran, suggesting that there are supply limits to President Donald Trump’s threat to subject the Islamic Republic to the "biggest attack" since World War II. These long-range missiles are a critical part of the US’s arsenal, allowing it to accurately target foes from a distance without relying on warplanes that are vulnerable to air defence systems. The report was seen as a vindication for critics of the war that the conflict is sapping the US’s military prestige and draining precious resources. The report comes after Trump backtracked on a pledge to unleash massive new strikes against Iran. Trump said he planned to carry out “the biggest attack since World War II” on Iran last week.