Powering the New Golden Dome for America

Ready to Protect the Homeland

To fulfill President Trump’s vision for homeland defense, the Department of War needs advanced, multi-domain missile warning and defense solutions. From left-of-launch to hit-to-kill, L3Harris stands ready to deliver critical capabilities now to detect, track, intercept and neutralize evolved missile threats.  

What's New

Learn how we’re delivering trusted national security solutions at the pace of a technology disruptor.

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engine hot-fire tests

Press release

L3Harris Conducts Successful Hot-Fire Test in Major Milestone for Next Generation Interceptor Program

L3Harris Technologies has successfully completed a hot-fire test of its stage two advanced large solid rocket motor (SRM) for the Missile Defense Agency’s Next Generation Interceptor (NGI). L3Harris conducted the test as part of the Lockheed Martin team advancing the effort to strengthen the nation’s homeland missile defense.

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THAAD missile defense system

Press release

L3Harris Signs Framework to Quadruple THAAD Propulsion Production

L3Harris Technologies has signed a framework agreement with the Department of War and Lockheed Martin for a multi-year contract to quadruple propulsion production for the Terminal High Altitude Area Defense (THAAD) system.

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Satellites detect high-speed missiles that are tracking toward each other

Press release

US Space Force Selects L3Harris to Provide Advanced Tracking Satellites for America’s Missile Defense

L3Harris Technologies has received a contract from the U.S. Space Force’s Space Development Agency (SDA) to produce 18 Accelerated Missile Defense Tranche 3 (AMDT3) satellites to support the Golden Dome for America’s space-based capabilities.

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Space-Based Missile Warning, Tracking and Fire Control

L3Harris Space-based Missile Warning and Defense

Space-based Missile Warning & Defense

L3Harris is propelling the space industry forward with responsive, agile and affordable missile warning and defense solutions.
ARDE 10,800 Cu.In He/ Xe COPV thumbnail image

ARDE Pressure Vessels and Propellant Tanks

ARDE, Inc. emphasizes prompt, reliable service to the human spaceflight, launch vehicle, satellite and defense industries.

Kinetic Interceptor Solutions

Missile takes off in the sky

Solid Rocket Motors

Proven Propulsion. Fueled by Innovation.
Hypersonics

Hypersonics: Driving Innovation in Defense

That's why L3Harris is focused on providing the innovative, integrated solutions needed to develop and field land-, sea- and air-launched hypersonic weapons for our nation’s warfighters.
A Medium Range Ballistic Missile target was air launched from a C-17 aircraft. MRBM Type 1 and Type 2 targets are designed, manufactured and launched by Aerojet Rocketdyne’s Coleman site. (Photo credit: Missile Defense Agency)

Missile Target Systems

L3Harris provides ballistic missile targets through its Coleman Aerospace subsidiary.
THAAD

Terminal High Altitude Area Defense (THAAD)

The Terminal High Altitude Area Defense (THAAD) weapon system is a critical element of the Nation’s Ballistic Missile Defense System
PAC-3 MSE

PAC-3 MSE

The Patriot™ Missile Defense System is a land-based, mobile guided missile system fielded by the U.S. Army and currently deployed around the world.
Ground-Based Midcourse Defense System

Ground-Based Midcourse Defense System

The Missile Defense Agency’s Ground-Based Midcourse Defense System (GMD) is a key element of the Ballistic Missile Defense System.
AEGIS Ballistic Missile Defense System

AEGIS Ballistic Missile Defense System

A key element of the Missile Defense Agency's Aegis Ballistic Missile Defense System is the Raytheon-built STANDARD Missile.
A THAAD interceptor is launched from the Reagan Test Site, Kwajalein Atoll in the Republic of the Marshall Islands, during Flight Test THAAD-23. (Credit: Missile Defense Agency)

Divert & Attitude Control Systems

L3Harris delivers high precision liquid- and solid-fueled divert and attitude control systems to

Resilient and Networked Communications

Link 16 Tactical Data Links

Link 16 Tactical Data Links

L3Harris Link 16 tactical data links and LOS comms provide enhanced situational awareness and reduced fratricide potential.
Strategic SATCOM

Strategic SATCOM

Learn how L3Harris strategic ground SATCOM terminals ensure 21st century fighting forces remain connected to the global information network.
Tactical Multiband Radios

Tactical Multiband Radios

Enhance interoperability between military and public safety forces. Secure Line-Of-Sight and SATCOM communications. Compact, lightweight and built on customer-proven L3Harris Falcon® technology.
L3Harris Airborne Telemetry

Airborne Telemetry

L3Harris Telemetry & RF Products is a premier manufacturer of missile and aircraft flight test instrumentation and complete airborne turnkey systems.

Custody, ISR and Left-of-Launch

Space Warfare Teaser

Defense Space

Space is an increasingly contested arena – and becomes more so every day. L3Harris helps ensure the United States remains the leading force in this battlespace and continues that dominance into the future.
Space and Intelligence Communications - Telemetry and RF products

Space and Intelligence Communications

Defense, intelligence and government agencies, as well as international and commercial organizations depend on L3Harris’ Telemetry and RF products to quickly and affordably deliver mission critical technology.
ISR and SIGINT Solutions

ISR and SIGINT

L3Harris provides rapid delivery of integrated intelligence, surveillance and reconnaissance.
sas-geospatial-high-resolution-imagery

High-Resolution Satellite Imagery

With resolutions ranging from 0.3 meters to 1 meter, our high-resolution satellite imagery redefines what’s possible in simulation, engineering, infrastructure, telecommunications, precision agriculture, and disaster recovery.
L3Harris Satellite and Payload Processing

Hosted Payload Solutions

L3Harris is the largest and most experienced hosted payload provider in the world, specializing in end-to-end hosted payload solutions that get commercial and government missions into space affordably.
ADS-B Xtend for Airports

ADS-B Air Traffic Surveillance

L3Harris tracks ADS-B targets throughout the homeland for the FAA. Identifying friendly aircraft can help isolate targets of interest.

Autonomous Battle Management

Space is vital to our modern way of life. But threats to our nation's space assets grow in scope and lethality each day. L3Harris’ space BMC3 solutions close the warfighting observe-orient-decide-act loop – to ensure that the U.S. is always faster than the threat.

Space BMC3

Space is vital to our modern way of life. But threats to our nation's space assets grow in scope and lethality each day. Our space BMC3 solutions close the observe-orient-decide-act loop – to ensure that the U.S. is always faster than the threat.
DiSCO™ concept image thumbnail

Distributed Spectrum Collaboration and Operations (DiSCO™)

DiSCO technology is a resilient, future-fit electromagnetic spectrum operations (EMSO) architecture that weaponizes electronic warfare (EW) data to achieve overmatch at campaign speed.

Construction crews continue work on expanding a facility in Arkansas

Press release | 06. 24. 2026

L3Harris Plans Arkansas Facility Expansion for PAC-3 Propulsion Production

L3Harris Technologies broke ground on two additional facilities to support increased production capacity for the U.S. Army’s PAC-3® propulsion systems, further reinforcing the Department of War’s modernized Arsenal of Freedom and the nation’s ability to meet rising demands.

Construction crews continue work on expanding a facility in Arkansas

Press release | 06. 24. 2026

L3Harris Plans Arkansas Facility Expansion for PAC-3 Propulsion Production

L3Harris employees at the Advanced Manufacturing Facility-South in Huntsville, Alabama

Press release | 06. 01. 2026

L3Harris Continues Expansion of Solid Rocket Motor Facilities in Huntsville

PAC-3 MSE

Press release | 05. 26. 2026

L3Harris Strengthens Global Solid Rocket Motor Supply Chain With New PAC-3 Propulsion Supplier

Virginia Gov. Abigail Spanberger, L3Harris VP Mark Farley, and state and local leaders make announcement

Press release | 04. 15. 2026

L3Harris Announces Billion Dollar Expansion to Boost Solid Rocket Motor Production in Orange County, Virginia

New satellites for the SDA Tranche 1 Tracking program in production at L3Harris’ manufacturing facility

Editorial | 12. 10. 2025

L3Harris Ramps Up Production of Next-Gen Missile Tracking Satellites at Expanded Florida Facility

Launched effects fly through a red sky

Defeating Modern Threats with Capable, Affordable Munitions

The United States and its allies face increasingly complex and rapidly evolving threats that require industry to meet the moment through innovation and a renewed focus on producibility, Quinlan Lyte, President, Advanced Effects, Missile Solutions, L3Harris, writes in Breaking Defense.
Nexus Background Stealth

L3Harris Test Marks Step Forward on Next-Generation Ramjet Propulsion

Successful testing demonstrated a full-scale, flight-like solid fuel ramjet fuel propulsion system focused on affordability, speed, manufacturability and mission effectiveness.
Soldiers in comms room

Mobilizing the Future of Joint All-Domain Command and Control

The Tactical Operations Center-Light (TOC-L), developed by L3Harris in partnership with Booz Allen, is a key component of the Department of the Air Force’s CJADC2 vision and ABMS, designed to enhance counter-air operations, connectivity, and situational awareness from dispersed locations, ensuring robust and adaptable mission readiness for U.S. and allied forces.

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Nexus in front of corporate headquarters

The appearance of U.S. Department of War visual information does not imply or constitute DOW endorsement.