The US Navy has fired nearly $1 billion in missiles to counter threats from Iran and its proxy forces over the past six months, the sea service’s top civilian official revealed, Report informs referring to Business Insider.

The disclosure underscores the depth – and the growing financial cost – of US naval involvement in the Middle East.

Since October, American warships and aircraft operating in the Red Sea have shot down scores of Houthi missiles and drones, and carried out preemptive strikes against the militants directly in Yemen.

More recently, over the weekend, American warships operating in the eastern Mediterranean Sea intercepted multiple Iranian ballistic missiles during Tehran’s unprecedented attack on Israel.

“We have actually countered over 130 direct attacks on US Navy ships and merchant ships,” Secretary of the Navy Carlos Del Toro said at a Senate Appropriations Subcommittee on Defense budget hearing for the upcoming fiscal year.

The various munitions that the Navy has used to intercept threats in the air and also conduct preemptive strikes on the Iran-backed Houthis in Yemen are not cheap, and because these engagements have occurred regularly over the past six months, the costs add up. A Standard Missile-2 interceptor, for instance, is estimated to cost around $2 million.