America Needs an Iran Supplemental—And It Must Include More Than Missiles

Operation Epic Fury is now entering its second week, and the bills are already staggering. The Center for Strategic and International Studies estimates that the first 100hours of air and missile defense operations cost $3.7 billion — roughly $891 million per day in unbudgeted expenditures. Twenty percent of the Navy’s SM-3 interceptor inventory has been expended.

Between 20 and 50 percent of THAAD missile stocks are gone. Iran has launched over 500 ballistic missiles and 2,000 drones, and the Pentagon is quietly circulating a supplemental appropriations request that could reach $50 billion.

The costs of inaction would have been far greater. Iran is the world’s foremost state sponsor of terrorism, the architect of a proxy empire stretching from Lebanon to Yemen, and a regime that was, by all credible intelligence assessments, months away from a deliverable nuclear weapon. A nuclear-armed Iran would have triggered a cascade of proliferation across the Middle East, rendered every diplomatic agreement in the region meaningless, and placed an existential threat on the doorstep of America’s closest allies. The strike on Iranian nuclear infrastructure was not a war of choice; it was the last viable window to prevent a far more dangerous and costly confrontation down the road. The question Congress must now answer is not whether this campaign was worth undertaking — the strategic logic is overwhelming — but how to fund it responsibly while the mission is still underway.

The political terrain is treacherous. The House defeated a war powers resolution by only seven votes, 212 to 219, and the Senate margin was similarly narrow at 48 to 52. Democrats are divided between those who agree with Senator Chris Murphy, who has declared a flat refusal to fund what he calls an unauthorized war, and those siding with Senator Tim Kaine, who is exploring whether the appropriations process can be leveraged to impose conditions on the military campaign. Republicans face their own anxieties: strategists warn that a protracted, expensive conflict could become a defining issue in the 2028 midterms, and the SAVE America Act — the administration’s domestic legislative priority — is competing for floor time and political capital. Speaker Johnson has acknowledged that the supplemental cannot be allowed to crowd out domestic priorities.

Yet the supplemental is unavoidable for a reason that transcends partisan calculation: the United States cannot sustain this tempo of operations by raiding existing defense accounts. The Penn Wharton Budget Model projects total military costs of $40 to $95 billion for a two-month campaign, with an additional $50 to $210 billionin broader economic losses from energy disruption and supply chain shock. Interceptor production lines at Raytheon and Lockheed Martin operate at peacetime capacity; the White House summoned defense industry executives to discuss emergency production surges. Every THAAD round fired at an Iranian ballistic missile today is one fewer round available to deter North Korean provocations tomorrow. The military math is unambiguous: Congress must act.

But a supplemental that merely replenishes missile stocks while ignoring the political dimension of the conflict would represent a catastrophic failure of strategic imagination. The entire premise of American policy toward Iran — across administrations of both parties — has been that the Islamic Republic’s destabilizing behavior flows from the character of the regime itself. If that premise is correct, then the greatest return on investment in any Iran supplemental is not another shipment of SM-6 interceptors but a serious, sustained commitment to the Iranian people who are trying to change their government from within.

What would such an investment look like in practice? The model legislation that policy organizations have begun circulating on Capitol Hill offers a framework built around five pillars. The first is immediate humanitarian and communications support: funding for secure communications infrastructure inside Iran — encrypted platforms, satellite internet terminals, and independent broadcasting — so that the Iranian public can organize, share information, and resist regime propaganda during a period of extraordinary upheaval. The estimated cost is between $200 and $400 million, benchmarked against comparable programs in the 2022 Ukraine supplemental.

The second pillar is direct support for Iranian civil society. This means resources for striking workers who have repeatedly demonstrated the ability to paralyze key sectors of the Iranian economy, stipends and protection for pro-democracy activists, funding for women’s rights organizations that have been at the vanguard of resistance since the Mahsa Amini protests, and support for ethnic and religious minority groups whose grievances the regime has exploited for decades. Organizations like the National Endowment for Democracy and its affiliated institutes have existing networks that can be scaled rapidly with proper funding — an investment of $300to $500 million modeled on the Near East Regional Democracy Programs.

Third, the supplemental should include a comprehensive sanctions and designations package targeting not just the Islamic Revolutionary Guard Corps but the full architecture of regime control: the Ministry of Intelligence and Security, the Basij militia, the judiciary officials who have overseen mass executions of protesters, and the financial networks that sustain proxy militias from Lebanon to Yemen. The Magnitsky Act provides the legal framework; what is needed is the political will and the dedicated staff resources — approximately $150 to $250 million dollars — to execute designations at scale.

The fourth pillar looks beyond the current crisis to the question every serious policymaker should be asking: what comes after? History teaches that the most dangerous moment in any authoritarian transition is the period between the collapse of the old regime and the consolidation of a new one. A supplemental that includes transitional governance planning — funding for constitution-drafting support, judicial reform expertise, lustration frameworks that remove regime loyalists while preserving a functioning state, and economic stabilization mechanisms — would cost between $400 million and $1 billion dollars over five years. That is a fraction of what the United States spent on comparable efforts in Iraq and Afghanistan, and the conditions in Iran are far more favorable: the country has a large, educated middle class, a sophisticated diaspora, and an organized opposition that includes leaders spanning the full spectrum of Iranian political, ethnic, and religious life.

Finally, the supplemental should address the nuclear and weapons of mass destruction dimension through dedicated disarmament funding — verification mechanisms, facility dismantlement planning, and International Atomic Energy Agency surge capacity — at a cost of $200 to $400 million dollars. The alternative is to fight an expensive war, leave the regime’s nuclear infrastructure intact, and watch the cycle repeat in five or ten years.

The total price tag for this civil society and political transition package is between approximately $2 and $3.5 billion — serious money, but a small fraction of the $50 billion military supplemental the Pentagon is requesting, and a tiny fraction of the total economic cost of the conflict. The strategic logic is straightforward: if the United States is going to spend tens of billions of dollars degrading Iran’s military capabilities, it should invest a fraction of that sum in ensuring that those capabilities are never reconstituted by the same regime.

Critics will object on several grounds. Some will argue that funding civil society in a country with which the United States is engaged in active hostilities is impractical. But the precedent is clear: the United States funded Polish Solidarity while engaged in a global confrontation with the Soviet Union, supported Afghan civil society while conducting military operations, and authorized billions in Ukrainian civil society and governance assistance alongside lethal aid. The Iran supplemental should follow the same model.

Others will argue that now is not the time — that the supplemental should focus narrowly on military replenishment and that civil society funding can wait for a standalone bill. This argument misunderstands the legislative calendar and the unique political window that a supplemental creates. Emergency supplementals move faster than normal appropriations. They attract bipartisan coalitions that would otherwise be impossible. And they carry a sense of urgency that focuses minds. If civil society funding is stripped out of the supplemental and relegated to a future authorization bill, it will die the slow death that most good ideas die in Congress: in committee, unfunded and forgotten.

The men and women of the United States Armed Forces are performing with extraordinary skill and courage in Operation Epic Fury. They deserve the resources they need to complete their mission. But the mission itself is incomplete if it ends with a degraded Iranian military and an intact Iranian regime. An Iran supplemental that pairs military replenishment with a serious investment in the Iranian people’s own aspirations for freedom is not idealism. It is strategy. Congress should pass one.