WASHINGTON — The U.S. military’s price tag for the Iran war has grown to $43.6 billion as of Sept. 3, according to a new estimate provided this week to lawmakers.

The figure from U.S. Central Command, which oversees operations in the Middle East, offers the most up-to-date cost for the conflict since it was launched by the United States and Israel on Feb. 28. A Congressional Budget Office report released Tuesday said the war had cost $38 billion through Aug. 1 and will continue to rack up expenses of around $3 billion a month depending on the conflict’s intensity.