Author: Elodie Collins|| Date Published: November 13, 2025
The Department of State has approved a potential foreign military sale of AIM-9X Block II Sidewinder tactical missiles and related support equipment valued at an estimated $318.4 million to the government of Denmark. RTX will serve as the principal contractor of the proposed FMS, the Defense Security Cooperation Agency said Wednesday.
What Does the Approved FMS Include?
Denmark’s request includes up to 340 AIM-9X Block II tactical missiles and 34 associated guidance units. The sale package also covers training aids, weapon software, spare and repair parts, technical documentation, and logistics support.
The AIM-9X Sidewinder is an infrared-tracking short-range missile for air-to-air engagements and surface launches. It fits many aircraft, including the F-15C Eagle, F-15E Strike Eagle, F-16 Fighting Falcon, F-22 Raptor, F/A-18 Super Hornet, E/A-18G Growler and F-35 Joint Strike Fighter variants.
The Block II variant adds a redesigned fuze, a digital ignition safety device and updated electronics with lock-on-after-launch via a weapon datalink to support beyond-visual-range engagements and improve overall in-flight safety.
How Will the Sale Strengthen NATO Defense?
DCSA added that the sale aligns with American foreign policy and national security objectives by reinforcing the defense capabilities of a NATO ally. The weapons are expected to enhance Denmark’s ability to respond to evolving threats and strengthen interoperability with U.S. and allied forces.
Denmark already operates the AIM-9X missile system on its F-35A fighter aircraft and through ground-based air defense units. Therefore, it will be able to integrate the new missiles and equipment without difficulty.
The sale will have no impact on U.S. defense readiness.
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