President Donald Trump has signed an executive order titled "The Iron Dome for America," directing the development of a comprehensive missile defense system for the United States13. This initiative aims to create a next-generation missile defense shield to protect against various aerial threats, including ballistic, hypersonic, and advanced cruise missiles1.

Key aspects of the proposed U.S. Iron Dome system include:

1. Multilayered defense: The system will incorporate multiple layers of protection, including space-based components3.

2. Advanced technologies: It calls for accelerating the deployment of Hypersonic and Ballistic Tracking Space Sensor layers and developing space-based interceptors13.

3. Comprehensive coverage: The system aims to defend against a wide range of threats from peer, near-peer, and rogue adversaries3.

4. Supply chain security: The order emphasizes developing a secure supply chain for all components with next-generation security features3.

5. Non-kinetic capabilities: The plan includes developing non-kinetic capabilities to augment kinetic defenses3.

While inspired by Israel's Iron Dome, the U.S. version would be significantly larger and more complex due to the vast difference in geographical area to be protected2. The Israeli Iron Dome is designed primarily for short-range rockets and artillery shells, covering an area about the size of New Jersey35.

The cost of implementing such a system for the United States is estimated to be substantial, with some projections exceeding $2 trillion2. This figure is more than double the current U.S. military budget, highlighting the ambitious scale of the project2.

The executive order gives the Secretary of Defense 60 days to develop a detailed implementation plan3. However, the project will require significant congressional support and funding to move forward2. The fiscal 2026 budget request is expected to take this initiative into account3.

While the concept draws inspiration from Israel's Iron Dome, the U.S. version would likely be an American-made system, potentially involving defense contractors like Raytheon, which has experience with the Israeli Iron Dome through its partnership with Rafael Advanced Defense Systems5.