H.R. 4281: Bunker Buster Act of 2025

This bill, known as the Bunker Buster Act of 2025, aims to enhance the preparedness of Israel in the context of Iran potentially developing a nuclear weapon. Below are the main provisions and purposes of the bill:

1. Overview of the Bill

The Bunker Buster Act of 2025 authorizes the President of the United States to take specific actions to prepare Israel for various situations related to Iran's nuclear weapon development. This authorization can only occur if the President determines it is crucial for U.S. national security.

2. Background Findings

The bill outlines several findings related to Iran's nuclear activities, including:

• Iran has been enriching uranium, reaching levels nearing weapons-grade purity (up to 90 percent).
• As of May 2024, Iran has amassed a significant stockpile of enriched uranium, enough for multiple nuclear weapons.
• There are concerns about Iran constructing new facilities to further its nuclear program.
• Iran has violated various international agreements regarding nuclear development, prompting censure from international bodies.

3. U.S. Policy Directions

The bill expresses the sense of Congress that the U.S. should:

• Work to extend limitations on Iran's uranium enrichment through diplomatic channels.
• Support Israel and other allies in their preparations against potential Iranian nuclear threats.
• Make it clear to Iran that developing a nuclear weapon will not be tolerated.
• Reaffirm the U.S. commitment to deter any Iranian nuclear development through credible military means.

4. Authorizations for Preparedness Actions

The President is granted the authority to take the following actions, contingent on meeting specific preliminary conditions:

• Construct facilities in Israel to support large ordnance systems capable of destroying underground nuclear infrastructures. This includes:
• Extended runways for aircraft capable of carrying Massive Ordnance Penetrator (MOP) munitions.
• Aircraft necessary for MOP delivery.
• Basing options and munitions storage facilities.
• Store MOP or related munitions in Israel for U.S. use, with conditions for transferring custody to Israel under certain circumstances involving Iranian non-compliance with international agreements.
• Train Israeli personnel regarding the MOP and related munitions.
• Engage in joint research and development with Israel to improve U.S. and Israeli capabilities concerning ordnance to destroy underground facilities.

5. Military Use Limitations

Importantly, the bill clarifies that it does not authorize the use of military force against Iran.

Relevant Companies

• BA (Boeing) - As a key defense contractor, Boeing could see increased demand for military aircraft or ordnance systems related to U.S.-Israel defense initiatives.
• RTX (Raytheon Technologies) - Raytheon, known for its missile systems and military technology, may be impacted through potential contracts for munitions or defense systems relevant to Israel's needs.
• NOC (Northrop Grumman) - Northrop Grumman could be affected through increased defense spending related to joint research and development of military systems aimed at addressing Iranian threats.