US Central Command provided a new estimate to congressional defense committees this week, stating that military operations against Iran have cost $43.6 billion as of Sept. 3.

The breakdown of the expenditure reveals significant capital intensity in munitions replenishment. The estimate details the following cost components:

The data indicates that munitions replacement constitutes the largest share of the disclosed costs, exceeding operational expenses by more than double. This figure was shared by Punchbowl Defense Reporter Briana Reilly on X, citing the Central Command disclosure.

Former US Secretary of State Mike Pompeo warned that Iran is leveraging its Houthi allies in Yemen to increase pressure on the United States and Saudi Arabia. He described this escalation as a critical component of Tehran’s regime survival strategy.

Strategic Escalation via Proxies

Pompeo issued the warning in a post on X on Wednesday. He stated that Tehran is using its Houthi proxies to raise the stakes for Washington and Riyadh.

"This is a critical part of the regime’s survival strategy, and cannot be allowed to succeed," he wrote.

Regional Military Developments

Saudi Crown Prince Mohammed bin Salman reportedly sought military assistance from President Donald Trump against Yemen’s Houthi rebels last week. Reuters reported that Trump offered intelligence support instead of direct US strikes.

The Houthis subsequently seized the Red Sea port of Mocha and reached Perim Island near the Bab el-Mandeb Strait. This development raised concerns over another major energy shipping route while the Strait of Hormuz remained severely disrupted.

Broader Conflict Context

The escalation increased pressure on Trump’s efforts to end the Iran conflict. UN officials warned that Yemen had entered a "new and more dangerous phase." The developments also raised concerns over energy shipments as Saudi Arabia increasingly relied on the Red Sea route.

Last month, Trump called off a planned attack on Iran and announced negotiations with Tehran focused on the Strait of Hormuz and Iran’s nuclear program. Iran denied asking Trump to halt the attack and stated that an Oman-backed shipping route did not mean the Strait would reopen.

In July, the Houthis threatened a maritime blockade of Saudi Arabia, raising concerns over global energy supplies and shipping through the Bab el-Mandeb Strait. The Trump administration had ordered additional strikes on Iranian military targets as ceasefire talks continued, while oil prices remained elevated amid concerns over disruptions to key shipping routes.