# 119-s-435: IRONDOME Act of 2025

119-s-435, IRONDOME Act of 2025, is a 119th Congress bill sponsored by Sen. Sullivan, Dan [R-AK] (R-AK); status introduced (as of 2026-04-21).

- Canonical: https://policyrisk.com/legislation/119-s-435
- As of: 2026-04-21
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: 119-s-435
- Congress: 119
- Title: IRONDOME Act of 2025
- Status: introduced
- Introduced: 2025-02-05
- Sponsor: Sen. Sullivan, Dan [R-AK] (R-AK)
- Cosponsors: 2
- Policy area: Armed Forces and National Security
- Touches household money: no
- Last recorded action: 2026-04-21

## 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. - 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.*

## Cosponsors (2)

- Sen. Cramer, Kevin [R-ND] (R-ND), 2025-02-05T00:00:00.000Z
- Sen. Banks, Jim [R-IN] (R-IN), 2025-02-27T00:00:00.000Z

## Provisions PRIA read

- Big missile defense funding for FY2026: benefit, high. 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…
- Expand Fort Greely interceptors by 2038: benefit, high. 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: benefit, high. 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 Spac…
- New missile defense plans and reports: benefit, low. 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 f…

## Related bills

- 119-s-524: Coast Guard Authorization Act of 2025
- 119-s-3923: Weather Research and Forecasting Innovation Reauthorization Act of 2026
- 119-s-4744: Take Care of America’s Veterans Act
- 119-s-2142: GOLDEN DOME Act of 2025
- 119-s-1748: Kids Online Safety Act
- 119-s-4949: Water Resources Development Act of 2026

## Sources
- [119-s-435 on Congress.gov](https://www.congress.gov/bill/119th-congress/senate-bill/435)

## Related
- [119-s-524: Coast Guard Authorization Act of 2025](https://policyrisk.com/legislation/119-s-524)
- [119-s-3923: Weather Research and Forecasting Innovation Reauthorization Act of 2026](https://policyrisk.com/legislation/119-s-3923)
- [119-s-4744: Take Care of America’s Veterans Act](https://policyrisk.com/legislation/119-s-4744)
- [119-s-2142: GOLDEN DOME Act of 2025](https://policyrisk.com/legislation/119-s-2142)
- [119-s-1748: Kids Online Safety Act](https://policyrisk.com/legislation/119-s-1748)
- [119-s-4949: Water Resources Development Act of 2026](https://policyrisk.com/legislation/119-s-4949)
- [All bills in Congress](https://policyrisk.com/legislation)

Source: PRIA, https://policyrisk.com/legislation/119-s-435 (as of 2026-04-21).