Deputy Defense Secretary Stephen Feinberg told US lawmakers in phone calls that the Department of Defense needs $80 billion to cover costs from the Iran war and other non-war-related bills, the Wall Street Journal reported, citing people familiar with the matter. Reuters could not immediately verify the report, and the Pentagon declined to comment. The White House was not immediately available for comment outside business hours when contacted by Reuters.

A full US supplemental request, including money for the Pentagon and non-defense priorities such as farm and disaster relief, could be sent to lawmakers in the coming days. An initial $200 billion request for additional funding met stiff resistance, according to Navy Times. Pentagon leaders said they risk running out of money for operations in the coming months unless Congress passes a new wartime spending bill, Dawn reported. The military may need to cut back on training and troop deployment along the US-Mexico border, Dawn reported.

The Iran war began alongside Israel on February 28. A Pentagon official told Reuters in April that the Iran war has cost around $25 billion, providing the first official estimate of war costs. However, the full cost of the conflict, which Trump began alongside Israel on February 28, has not been fully detailed in the current supplemental request.