U.S. Awards Major Infrared Sensor Contract to Strengthen Taiwan Air Defense
The United States government has awarded Lockheed Martin a $328.5 million Foreign Military Sales (FMS) contract for the production and delivery of advanced infrared sensor systems to the Taiwan Air Force, the defense contractor announced February 2, 2026. The contract marks Taiwan as the first international partner to receive Lockheed Martin’s Legion-ES configuration of the IRST21 infrared search-and-track system.
The Legion-ES system represents a critical enhancement to Taiwan’s air defense capabilities, providing F-16 fighter aircraft with passive detection technology capable of tracking airborne threats at extended ranges without emitting detectable signals. According to the company’s announcement, the low-profile sensor system is specifically designed for integration with F-16 platforms to complement existing aircraft performance.
Advanced Passive Sensing Technology
The IRST21 Legion-ES is a long-wave infrared system that passively detects and tracks airborne targets without the use of active radar emissions. This passive capability offers significant tactical advantages in contested airspace, allowing pilots to detect threats while maintaining a lower electromagnetic signature that reduces the risk of detection by adversary systems.
“This award marks an important milestone as Taiwan becomes the first international partner to receive the Legion-ES IRST21 configuration,” said Cristin Stengel, program director for Lockheed Martin IRST21. This system will bring advanced passive sensing capability to strengthen situational awareness, accelerate decision-making and support our allied air forces.”
The system’s embedded and fully integrated design provides critical technology to detect and track airborne threats with high accuracy, directly increasing pilot reaction time and enhancing survivability for Taiwan’s fighter fleet. The integration with F-16 aircraft aligns with Taiwan’s existing fighter inventory, which includes both legacy F-16A/B Block 20 aircraft and newer F-16V Block 70/72 variants acquired through previous FMS agreements.
Proven Track Record
Lockheed Martin’s infrared search-and-track systems have accumulated more than 300,000 combined flight hours across various platforms, demonstrating operational reliability and effectiveness. The Legion-ES configuration builds on this extensive operational heritage while incorporating advanced sensor technology specifically optimized for the F-16 platform.
The system’s passive detection capability is particularly valuable in modern air combat scenarios where electronic warfare and radar warning receivers have become increasingly sophisticated. By detecting targets through their infrared signatures rather than relying on active radar emissions, the Legion-ES allows pilots to maintain situational awareness while operating in electromagnetic silence.
Strategic Context
The contract award comes amid ongoing U.S. efforts to strengthen Taiwan’s defensive capabilities in the face of growing regional security challenges. Taiwan has been modernizing its air force through multiple acquisition programs, including the procurement of 66 new F-16V Block 70/72 aircraft announced in 2019, representing an $8 billion deal that marked the first new fighter sale to Taiwan in decades.
The addition of advanced infrared sensor technology enhances the effectiveness of Taiwan’s fighter fleet without requiring new aircraft platforms. The Legion-ES system provides capabilities that complement existing onboard radar systems, creating a multi-sensor approach to threat detection and tracking that improves overall mission effectiveness.
Taiwan operates approximately 140 F-16 aircraft, including upgraded F-16V variants that feature active electronically scanned array (AESA) radar and modernized avionics. The integration of Legion-ES sensors will provide these aircraft with enhanced detection capabilities, particularly against advanced aircraft that employ stealth characteristics or operate in electronic warfare environments.
Foreign Military Sales Process
The Foreign Military Sales program enables U.S. allies and partners to purchase defense equipment through the U.S. government, with the Department of Defense managing the acquisition process. FMS agreements undergo congressional notification procedures and receive approval from multiple U.S. government agencies before contracts are awarded to defense contractors.
The $328.5 million contract value includes the production and delivery of multiple Legion-ES sensor systems, along with associated support equipment and technical services. Lockheed Martin’s Missiles and Fire Control division, headquartered in Orlando, Florida, serves as the prime contractor for the IRST21 program.
Regional Implications
The technology transfer represents confidence in Taiwan as a security partner and demonstrates U.S. commitment to supporting Taiwan’s defensive capabilities through access to advanced military technology. The Legion-ES system will provide Taiwan’s air force with capabilities comparable to those employed by U.S. forces, improving interoperability and shared operational concepts.
Regional security analysts note that enhanced air defense capabilities contribute to overall deterrence by improving the defensive posture of U.S. allies and partners. The passive detection capability provided by infrared search-and-track systems is particularly valuable in scenarios involving advanced aircraft that may employ reduced radar cross-sections or operate in support of electronic attack platforms.
System Integration and Delivery
Lockheed Martin has not disclosed specific delivery timelines for the Legion-ES systems under the new contract. However, FMS programs typically involve multi-year delivery schedules that coordinate with recipient nation training programs and integration planning. The company’s production facilities and integration teams will work with Taiwan’s air force to ensure successful fielding of the new capability.
The embedded design of the Legion-ES system simplifies integration compared to podded infrared search-and-track systems, reducing aerodynamic drag and preserving weapon station availability. This configuration advantage makes the Legion-ES particularly well-suited for the F-16 platform, which benefits from maintaining its full complement of external stores stations for weapons and fuel tanks.
Technology Leadership
Lockheed Martin’s development of the IRST21 family of sensors positions the company as a leader in passive detection technology for fighter aircraft. The Legion-ES configuration joins other IRST21 variants, including systems designed for different aircraft platforms and operational requirements. The company’s investment in infrared sensor technology addresses growing demand for passive detection capabilities as electromagnetic spectrum operations become increasingly contested.
The more than 300,000 flight hours accumulated by Lockheed Martin infrared systems provide extensive operational data that informs continued system refinement and capability enhancement. This operational heritage gives customers confidence in system reliability and performance under real-world operational conditions.
Broader Defense Relationship
The contract award adds to the substantial defense relationship between the United States and Taiwan, which has seen multiple major equipment sales in recent years. Beyond fighter aircraft and sensors, U.S. defense sales to Taiwan have included air defense systems, naval platforms, precision munitions, and support services that collectively enhance Taiwan’s defensive capabilities across multiple domains.
The Legion-ES contract demonstrates that defense cooperation extends beyond platform sales to include advanced subsystems and technologies that enhance the effectiveness of existing equipment. This approach allows Taiwan to maximize the capability of its current inventory while preparing for future modernization requirements.
The Foreign Military Sales framework provides structured processes for technology transfer, training, and sustainment support that help ensure successful integration of new capabilities. Lockheed Martin will work through established FMS channels to deliver the Legion-ES systems and provide associated support services.
Industry Perspective
For Lockheed Martin, the Taiwan contract represents the first international sale of the Legion-ES configuration and validates the system’s appeal to U.S. allies seeking advanced air defense capabilities. International sales help support production lines and reduce per-unit costs while expanding the customer base for continued system development and enhancement.
The defense contractor’s Missiles and Fire Control division has developed a robust portfolio of sensor systems, precision weapons, and fire control technologies that serve customers worldwide. The IRST21 family of products represents a key capability area that addresses persistent demand for advanced detection systems.
As regional security dynamics evolve and air defense requirements become more complex, passive detection capabilities like those provided by the Legion-ES system are expected to see continued demand from U.S. allies and partners operating F-16 aircraft and other compatible platforms.
The contract award underscores the strategic importance of sensor technology in modern air combat and highlights the role of Foreign Military Sales in strengthening defense partnerships through access to advanced U.S. military technology.
CAE F-16 Block 70 contract expands Taiwan Air Force training capability
CAE USA Inc. has been awarded a $69.9 million definitization modification to support the F-16 Block 70 Training Simulators program for the Taiwan Air Force, reinforcing U.S. backed efforts to modernize Taiwan’s air combat training infrastructure.
The award, issued by the U.S. Air Force Life Cycle Management Center at Wright Patterson Air Force Base, Ohio, increases the total cumulative value of the contract to nearly $128 million under the Foreign Military Sales framework.
Contract details and scope
The modification, identified as PZ0012, finalizes Phase II of contract FA8621-23-C-0023, previously awarded to CAE USA Inc., headquartered in Arlington, Texas. The action increases the total contract value from $58.1 million to $127.99 million.
Work under the contract will be performed in Arlington, Texas, with completion expected by Aug. 29, 2028. The effort focuses on delivering advanced F-16 Block 70 training simulators tailored to the operational requirements of the Taiwan Air Force.
At the time of award, $59.4 million in Fiscal 2026 Foreign Military Sales funding was obligated.
Supporting Taiwan’s F-16 Block 70 fleet
The CAE F-16 Block 70 contract directly supports Taiwan’s ongoing acquisition and modernization of its F-16 fleet, which includes new build F-16C Block 70 aircraft approved through U.S. Foreign Military Sales channels.
Training simulators play a critical role in preparing pilots for advanced avionics, radar systems, mission computers, and networked combat operations associated with the Block 70 configuration. High fidelity simulators allow aircrews to train for complex mission sets while reducing operational costs and aircraft wear.
CAE is a long standing supplier of military training systems to the U.S. Department of Defense and allied air forces, with a portfolio that includes full mission simulators, mission rehearsal systems, and integrated training solutions.
Role of the U.S. Air Force and FMS framework
The Air Force Life Cycle Management Center is serving as the contracting authority, reflecting the U.S. government’s role in managing Foreign Military Sales programs for allied nations.
Under the FMS structure, the U.S. Department of Defense oversees contracting, program management, and delivery to ensure interoperability, standardization, and compliance with U.S. security requirements. Taiwan’s F-16 Block 70 training program is one of several FMS cases aimed at strengthening air defense readiness in the Indo Pacific region.
The definitization modification signals the transition from earlier contractual phases to a fully defined cost, schedule, and scope, providing long term program stability for both the U.S. government and Taiwan.
Strategic importance of simulator based training
Advanced simulator based training has become a core component of modern air force readiness. For aircraft such as the F-16 Block 70, simulators enable pilots to train for high threat scenarios that cannot be safely or affordably replicated during live flight operations.
These systems support joint training concepts, emergency procedures, sensor fusion operations, and combat mission rehearsal. They also allow air forces to maintain pilot proficiency amid limited flight hours or operational constraints.
For Taiwan, expanding simulator capacity is particularly important given airspace congestion and high operational tempo.
CAE’s position in defense training systems
CAE USA is a key U.S. subsidiary of CAE Inc., a global leader in military and civil aviation training. The company supports numerous U.S. and allied programs, including fighter, mobility, rotary wing, and unmanned systems training.
The F-16 Block 70 contract further strengthens CAE’s footprint in Asia focused defense training, while reinforcing its role as a trusted supplier within the U.S. FMS ecosystem.
Program timeline and outlook
With work extending through 2028, the program aligns with Taiwan’s broader timeline for inducting new F-16 Block 70 aircraft into operational service. Simulator delivery and integration are expected to progress in parallel with aircraft deliveries, ensuring pilots transition smoothly to the new configuration.
The award reflects continued U.S. government support for allied airpower modernization through long term, structured defense contracts.
Taiwan Scrambles Mirage 2000 Jets Amid China Military Drills
Taiwan Air Force scrambled its Mirage 2000 fighter jets from Hsinchu Air Base in response to ongoing Chinese military drills near its airspace. The drills come amid heightened tensions in the Taiwan Strait, reflecting the island’s continued vigilance against potential incursions.
During the exercise, the Taiwanese jets were launched to intercept and monitor Chinese aircraft operating close to the median line of the Taiwan Strait. The deployment was part of standard defensive measures, emphasizing Taiwan’s readiness to maintain its territorial integrity.
Military analysts note that China has increased the frequency of aerial exercises in recent months, often crossing sensitive maritime boundaries. Taiwan’s Air Force continues to maintain rapid reaction alert teams to counter these incursions, with Mirage 2000 jets among its primary interceptors.
The Mirage 2000, a multirole fighter aircraft acquired from France, remains a key component of Taiwan’s air defense strategy. Its agility and speed allow rapid response to potential threats in the region, supporting both air patrol and interception missions.
Officials confirmed that the scramble was conducted without incident and that all aircraft returned safely to base. The exercise highlights Taiwan’s ongoing commitment to airspace security and deterrence in the face of regional military pressures.