IRONDOME Act of 2025
Sponsored By: Senator Dan Sullivan
Introduced
Summary
Modernize and accelerate U.S. homeland missile defense. This bill would push rapid development, testing, and fielding of ground, sea, air, and space missile defenses and shift some operational duties from the Missile Defense Agency to the military departments.
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- The military departments and MDA: The bill would require a multi-year phased plan to transfer missile defense operations and sustainment from the Missile Defense Agency to the appropriate military departments, with a plan due within 120 days.
- Interceptors and bases: It would authorize about $19.5 billion for FY2026 to expand missile defense programs, including roughly $12.0 billion to expand Fort Greely to a minimum of 80 interceptors by 2038.
- New tech, sensors, and platforms: It would speed middle-tier acquisition and rapid prototyping for drone detection networks and Space Development Agency tranches, accelerate glide-phase and space-based interceptor work, modernize key radars, and require the Army to procure airships for sensors and communications.
*Would authorize about $19.5 billion for FY2026, increasing federal defense spending.*
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Bill Overview
Analyzed Economic Effects
4 provisions identified: 4 benefits, 0 costs, 0 mixed.
Big missile defense funding for FY2026
This bill would authorize about $19.5 billion for missile defense in fiscal year 2026. It would set aside money for many line items, including about $12 billion for Fort Greely interceptor expansion, $1.4 billion for THAAD, $1.5 billion for Patriot munitions, $1.0 billion for East Coast and Alaska Aegis Ashore site work, $500 million each for SM-3 Block 1B and IIA, $900 million for space-based R&D, $750 million for radar modernization, $100 million for dirigibles, and other specified amounts.
Expand Fort Greely interceptors by 2038
This bill would require the Secretary to expand Next Generation Interceptor production and build silos at Fort Greely, Alaska. The goal would be to field at least 80 interceptors for homeland defense. The bill would set January 1, 2038 as the deadline to reach that minimum fielding.
Speed missile defense development and fielding
This bill would direct the Defense Department to use rapid acquisition tools to speed many missile defense programs. It would push faster work on the Glide Phase Interceptor (with a required MDA report within one year), more THAAD systems and interceptor munitions, and radar modernization. The Space Development Agency and U.S. Northern Command would use middle-tier acquisition to rapidly field certain satellites and a drone-based audio detection network. The bill would let the Secretary waive regulations that block urgent construction (with a 45-day notice to Congress), direct steps to secure critical supply chains, and require the Army to buy and field dirigibles (the bill includes funding for dirigible procurement).
New missile defense plans and reports
This bill would require several short studies and plans. Within 120 days the Secretary would send a multi-year plan to move some MDA operations to military departments (only to be executed after later authorization). Within 180 days the Secretary would report on site selection and execution plans for Alaska and East Coast Aegis Ashore and for a southern-hemisphere facing warning radar. Within 180 days the Secretary would also send a feasibility study on lowering cost per round for space interceptors. For each year after enactment, combatant commands would include missile defense needs in their budget submissions.
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Sponsors & CoSponsors
Sponsor
Dan Sullivan
AK • R
Cosponsors
Kevin Cramer
ND • R
Sponsored 2/5/2025
Jim Banks
IN • R
Sponsored 2/27/2025
Roll Call Votes
No roll call votes available for this bill.
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