US spent almost $6 billion in first week of attacks on Iran

The United States spent approximately $6 billion in the first week of its joint attacks on Iran with Israel, Pentagon officials have told Congress, with Republicans expecting the Trump administration to ask for more.

The New York Times revealed that almost $4 billion was spent on munitions, mainly interceptors, to shoot down Iranian missiles. Senior officials said more funds would be needed to sustain operations and replenish depleted stockpiles.

In response to a request for comment from The New Arab, the Pentagon said it does "not have anything to provide".

Officials said the US and Israel have struck around 4,000 targets, including missile launchers, naval vessels, and air defences, diminishing Iran's capability to retaliate, including launching missiles and drones at Israel, US bases in the Middle East and other allies in the region. However, Iran's attacks have retaliatory attacks have continued, including against Israel and US military assets in the region.

Concerns have arisen about how much the war will cost the US, with critics arguing that interceptors, worth millions, are being used at rates that could impact the US defence industrial base.

The Centre for Strategic and International Studies (CSIS) estimates that the first 100 hours of the war cost about $3.7 billion dollars, or roughly $891 million per day.

The attacks, which killed several Iranian officials, including the Supreme Leader, Ayatollah Ali Khamenei, have been targeting Tehran's missile, naval, and nuclear capabilities.

Iran's Red Crescent says the American and Israeli attacks have killed over 1,000 people, including at least 175 people — including over 150 children — who were killed in a deadly attack on a girls' school in the southern Iranian town of Minab. A NYT analysis has shown that a US airstrike most likely targeted the school.

US officials have said they expect its war on Iran to last around four to six weeks, with US President Trump also projecting the war to last just over a month, stressing that it could go on "far longer" if needed.

The president is also refusing to rule out sending troops on the ground.

Israeli officials have said both countries should continue their war to weaken Iran and not ease until Iran's leadership is forced into collapse.

While there is no official costing of the US's June 2025 attacks on Iran, reports suggest the attack likely also ran into the billions, with much larger potential knock-on costs to the wider economy, including energy and market disruption.