Arms Sales Notification — Republic of Korea ($1.200 billion): Eight (8) AN/APG-78 Fire Control Radars (FCR) Mast Mounted Assembly
Key claim: The United States notified Congress of a proposed $1.2 billion Foreign Military Sale to the Republic of Korea of eight AN/APG-78 Fire Control Radars and related equipment.
Abstract
(Notice · Defense Department) The DoD is publishing the unclassified text of an arms sales notification.
AGENCY: Defense Security Cooperation Agency (DSCA), Department of Defense (DoD). ACTION: Arms sales notice.
SUMMARY: The DoD is publishing the unclassified text of an arms sales notification. FOR FURTHER INFORMATION CONTACT: Urooj Zahra at (703) 695-6233, [email protected] , or [email protected] . SUPPLEMENTARY INFORMATION: This 36(b) arms sales notification is published to fulfill the requirements of section 155 of Public Law 104- 164 dated July 21, 1996. The following is a copy of the attached Transmittal 26-43, Policy Justification, and Sensitivity of Technology. Dated: June 3, 2026. Stephanie J. Bost, Alternate OSD Federal Register Liaison Officer, Department of Defense. Transmittal No. RSAT 26-43 Notice of Proposed Issuance of Letter of Offer Pursuant to Section 36(b)(1) of the Arms Export Control Act, as amended (i) Prospective Purchaser: Republic of Korea (ii) Total Estimated Value: Major Defense Equipment *… $0.358 billion Other… $0.842 billion
TOTAL… $1.200 billion (iii) Description and Quantity or Quantities of Articles or Services under Consideration for Purchase: Major Defense Equipment (MDE): Eight (8) AN/APG-78 Fire Control Radars (FCR) Mast Mounted Assembly Eight (8) Longbow FCR Radar Electronic Units Forty (40) AN/ARC-231A (RT 1987) Very High Frequency/Ultra High Frequency radios Non-MDE: The following non-MDE items will also be included: Small Tactical Terminal KOR-24A with Link 16 capability; Improved Data Modem-401; AAR- 57 Common Missile Warning System; Manned-Unmanned Teaming X; Enhanced Image Intensifier (EI2) cameras; items and services to support the mission equipment; communication and navigation equipment; special tools and test equipment; support equipment; U.S. Government and contractor engineering, technical, and logistics support services; repair, support, and test equipment; spare and repair parts; transportation and organization equipment; software delivery and support; publications and technical documentation; personnel training and training equipment; and other related elements of logistics and program support. (iv) Military Department: Army (KS-B-ZJF) (v) Prior Related Cases, if any: KS-B-ZCF; KS-B-ZFQ (vi) Sales Commission, Fee, etc., Paid, Offered, or Agreed to be Paid: None known at this time (vii) Sensitivity of Technology Contained in t
Why this matters
The AN/APG-78 Longbow radar is the mast-mounted fire control system for AH-64 Apache attack helicopters, indicating continued modernization of ROK Army aviation and interoperability with US rotary-wing platforms. Combined with other recent notifications (MH-60R, AMRAAM, JDAM), this reflects a sustained tempo of major FMS cases to Seoul in mid-2026, reinforcing the US-ROK alliance’s materiel dimension amid Indo-Pacific deterrence posture.