WASHINGTON — The United States Department of Defense has formally requested congressional approval for a supplemental defence budget exceeding $200 billion to support potential military operations against Iran, according to administration sources familiar with the matter.

The extraordinary funding request represents the most significant escalation in Pentagon planning since tensions between Washington and Tehran reached new heights following Iran's withdrawal from nuclear monitoring agreements last month. The proposed budget would cover enhanced military positioning in the Persian Gulf, advanced weapons systems deployment, and extended operational capacity for up to 18 months of sustained engagement.

"This request reflects a serious shift in our strategic posture toward Iran," said Colonel Michael Harrison, former Pentagon strategic planner now at the Institute for Strategic Studies. "The scale suggests preparation for comprehensive military action rather than limited strikes." The funding package includes provisions for missile defence systems, naval fleet expansion in regional waters, and intelligence gathering operations across the Middle East.

Congress faces mounting pressure to act swiftly on the appropriation as Iranian Supreme Leader Ali Khamenei announced yesterday that Tehran would accelerate uranium enrichment activities. Defence analyst Rebecca Martinez at the Wilson Center warned that "the window for diplomatic resolution appears to be closing rapidly, making military contingency planning essential for American strategic interests in the region."