Notice2026-11401
Arms Sales Notification
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
June 8, 2026
Issuing agencies
Defense Department
Abstract
The DoD is publishing the unclassified text of an arms sales notification.
Full Text
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<title>Federal Register, Volume 91 Issue 109 (Monday, June 8, 2026)</title>
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[Federal Register Volume 91, Number 109 (Monday, June 8, 2026)]
[Notices]
[Pages 34618-34619]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-11401]
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DEPARTMENT OF DEFENSE
Office of the Secretary
[Transmittal No. 26-43]
Arms Sales Notification
AGENCY: Defense Security Cooperation Agency (DSCA), Department of
Defense (DoD).
ACTION: Arms sales notice.
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SUMMARY: The DoD is publishing the unclassified text of an arms sales
notification.
FOR FURTHER INFORMATION CONTACT: Urooj Zahra at (703) 695-6233,
<a href="/cdn-cgi/l/email-protection#acd9dec3c3c682d6cdc4decd82cfc5daecc1cdc5c082c1c5c0"><span class="__cf_email__" data-cfemail="394c4b565653174358514b58175a504f795458505517545055">[email protected]</span></a>, or <a href="/cdn-cgi/l/email-protection#fb9f88989ad5959889d589888998969c968fd59792888fd5989588d6969983bb969a9297d5969297"><span class="__cf_email__" data-cfemail="33574050521d5d50411d414041505e545e471d5f5a40471d505d401e5e514b735e525a5f1d5e5a5f">[email protected]</span></a>.
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
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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 the Defense Article or
Defense Services Proposed to be Sold: See Attached Annex
(viii) Date Report Delivered to Congress: May 18, 2026
* as defined in Section 47(6) of the Arms Export Control Act.
POLICY JUSTIFICATION
Korea--AH-64E Apache Upgrade Program
The Republic of Korea has requested to buy 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. The following non-major defense equipment
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 (MUM-TX); 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. The estimated
total cost is $1.2 billion.
This proposed sale will support the foreign policy and national
security objectives of the United States by improving the security of a
major ally that is an important force for political stability and
economic progress in the Indo-Pacific region.
The proposed sale will improve Republic of Korea's capability to
meet current and future threats by strengthening its Army heavy attack
helicopter capability and providing a credible force that is capable of
deterring adversaries. The Republic of Korea will have no difficulty
absorbing this equipment into its armed forces.
The proposed sale of this equipment and support will not alter the
basic military balance in the region.
The principal contractor will be The Boeing Company, located in
Arlington, VA. At this time, the U.S. Government is not aware of any
offset agreement proposed in connection with this potential sale. Any
offset agreement will be defined in negotiations between the purchaser
and the contractor.
Implementation of this proposed sale will not require the
assignment of any additional U.S. Government or contractor
representatives to Korea.
There will be no adverse impact on U.S. defense readiness as a
result of this proposed sale.
[[Page 34619]]
Transmittal No. 26-43
Notice of Proposed Issuance of Letter of Offer Pursuant to Section
36(b)(1) of the Arms Export Control Act
Annex
Item No. vii
(vii) Sensitivity of Technology:
1. The AH-64E Apache attack helicopter is the U.S. Army's advanced
attack helicopter, equipped for performing close air support, anti-
armor, and armed reconnaissance missions. The AH-64E Apache attack
helicopter contains the following communications and target
identification equipment, navigation equipment, aircraft survivability
equipment, displays, and sensors.
2. The AN/APG-78 Longbow Fire Control Radar (FCR) with Radar
Electronics Unit is an active, low-probability of intercept, millimeter
wave radar. The active radar is combined with a passive Radar Frequency
Interferometer mounted on top of the helicopter mast. The FCR Ground
Targeting Mode detects, locates, classifies, and prioritizes stationary
or moving armored vehicles, tanks, and mobile air defense systems as
well as hovering helicopters, helicopters, and fixed wing aircraft in
normal flight. If desired, the radar data can be used to refer targets
to the regular electro-optical Modernized Target Acquisition
Designation Sight (MTADS).
3. The AN/ARC-231A (RT 1987) Very High Frequency (VHF)/Ultra High
Frequency (UHF) radio is a multi-mode software defined radio providing
line-of-sight VHF/UHF secure and non-secure voice and data
communications over the 30.000-941.000 MHz frequency and satellite
communications beyond line-of-sight secure and non-secure voice and
data, including demand assignment multiple access communications from
240-320 MHz frequency on manned and unmanned aviation platforms. ARC-
231A (RT 1987) includes improved type-1 cryptographic algorithm and
processing capabilities, civil land mobile radio, Single Channel Ground
and Airborne Radio System capabilities, HAVE QUICK, second-generation
Anti-jam Tactical UHF Radio for NATO waveform, 8.33 kHz channel spacing
for Global Air Traffic Management compliance, and capability for Mobile
User Objective System waveform through possible future hardware and
software updates.
4. The Link 16 data link is a military tactical data link network.
Link 16 provides aircrews with enhanced situational awareness and the
ability to exchange target information to Command and Control (C2)
assets via Tactical Digital Information Link-Joint (TADIL-J). The Link
16 can provide a range of combat information in near-real time to U.S.
and allies' combat aircraft and C2 centers. The AH-64E uses the Harris
Small Tactical Terminal (STT) KOR-24A to provide Airborne, Maritime,
Fixed Station Small Airborne Link 16 Terminal capability. The STT is
the latest generation of small, two-channel, Link 16 and VHF/UHF radio
terminals. While in flight, the STT provides simultaneous
communication, voice or data, on two key waveforms.
5. The Improved Data Modem (IDM) provides digital air-to-air and
air-to-ground connectivity and transmission of air-to-air target data
between IDM equipped aircraft using legacy radio and crypto equipment.
The IDM also serves as interface between aircraft mission computers,
data capable radios, and Tactical internet (TI). The IDM manages
Situational Awareness data, processes command and control messages, and
incorporates protocols for sending and receiving mission command
digital messages on the TI, Private Net, and Longbow Net using the
protocols Air Force Application Program Development Net and Variable
Message Format.
6. The Manned-Unmanned Teaming X (MUM-TX) data link system provides
cross-platform communication and teaming between Apache, unmanned
aerial systems (UAS), and other interoperable aircraft and ground
platforms. It provides the ability to display real-time UAS sensor
information and MTADS full motion video feeds across MUM-TX equipped
platforms and ground stations.
7. The AAR-57 Common Missile Warning System (CMWS) detects energy
emitted by threat missile in-flight, evaluates potential false alarm
emitters in the environment, declares validity of threat, and selects
appropriate countermeasures for defeat. The CMWS consists of an
electronic control unit, Electro-Optic Missile Sensors, sequencer, and
Improved Countermeasures Dispenser.
8. The highest level of classification of defense articles,
components, and services included in this potential sale is SECRET.
9. If a technologically advanced adversary were to obtain knowledge
of the specific hardware and software elements, the information could
be used to develop countermeasures that might reduce system
effectiveness or be used in the development of a system with similar or
advanced capabilities.
10. A determination has been made that Korea can provide
substantially the same degree of protection for the sensitive
technology being released as the U.S. Government. This proposed sale is
necessary in furtherance of the U.S. foreign policy and national
security objectives outlined in the Policy Justification.
11. All defense articles and services listed in this transmittal
have been authorized for release and export to the Republic of Korea.
[FR Doc. 2026-11401 Filed 6-5-26; 8:45 am]
BILLING CODE 6001-FR-P
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