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S 435 119th Congress

IRONDOME Act of 2025

A bill to improve the missile defense capabilities of the United States, and for other purposes.

Official Title as Introduced Congress.gov

Introduced Feb 5, 2025 Latest action Feb 5, 2025 Sponsor: Sen. Sullivan, Dan [R-AK] Armed Forces and National Security
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Source: Congress.govUpdated 2026-09-17 14:09:12 UTC.

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Bill journey

4 dated records

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Congress.gov Recently refreshed U.S. Senate XML Recently refreshed
Introduction 1 One supplied introduction date.
Official actions 2 2 dated action records.
Committees 1 1 undated relationship.
Amendments 0 No record is cached.
Text versions 1 1 dated, 0 without a supplied date.
House roll calls 0 No exact legislation-key match in the House-vote cache.
Senate roll calls 0 No exact document-key match in the Senate-vote cache.
Related measures 0 No related-measure relationship is cached.
Linked law 0 No linked law record is cached; this does not predict outcome.
  1. Official action Congress.gov

    Read twice and referred to the Committee on Armed Services.

    IntroReferral · Senate

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    Official action Congress.gov

    Introduced in Senate

    IntroReferral · Library of Congress · Code 10000

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    Text version Congress.gov

    Introduced in Senate

    A dated text-version record is available.

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Every dated cached record linked to S 435. Same-date row order does not assert procedural sequence.
Date and timeRecordOfficial detailSource
IntroductionIntroduced Introduced in the Senate. Congress.gov
Official actionRead twice and referred to the Committee on Armed Services. No additional detail supplied.IntroReferral · Senate Congress.gov
Official actionIntroduced in Senate No additional detail supplied.IntroReferral · Library of Congress · Code 10000 Congress.gov
Text versionIntroduced in Senate A dated text-version record is available. Congress.gov

House roll calls join only on matching Congress, legislation type, and number. Senate roll calls join only on matching source-supplied document type and number, not question text. Committee and related-measure relationships have no date in their relationship records and therefore are counted above but never placed on the chronology.

Congressional Research Service

CRS summary

Introduced in Senate Feb 5, 2025

Increasing Response Options and Deterrence of Missile Engagements Act of 2025 or the IRONDOME Act of 2025This bill requires the Department of Defense (DOD) and other entities to take specified actions to support U.S. missile defense capabilities, particularly with respect to the U.S. homeland.DOD must submit to Congress a multi-year phased plan to transfer operations and sustainment responsibility for missile defense from the Missile Defense Agency to the appropriate military departments to allow the Missile Defense Agency to focus on research, development, and prototyping and testing.Additionally, among other elements, the bill requiresthe United States Northern Command and the Space Development Agency within DOD to use a specified acquisition process to conduct rapid testing and development of certain drone and satellite systems;each commander of a combatant command to include the missile defense interceptor and sensor requirements of the command in annual budget requests;DOD to use all authorities available to accelerate the development, production, and modernization of various defense systems and technology, including certain space-based interceptors; andthe Department of the Army to procure and field airships in support of the missile defense of the U.S. homeland from drones and ballistic, hypersonic, and cruise missiles.On January 27, 2025, President Trump signed an executive order titled The Iron Dome for America. The order directs DOD to develop plans for a next-generation missile defense shield to protect the U.S. homeland from ballistic, hypersonic, and advanced cruise missiles, and other next-generation aerial attacks.

Official documents

Text versions