North Korea claimed that launches of KN-23/Hwasong-11A and Hwasong-11D short-range ballistic missiles (SRBMs) on April 8 and 19, respectively, examined “cluster bomb warhead” (submunition) payloads. Though these have been the North’s most particular public references to such missile payloads, it alluded to them in Fall 2022 and has lengthy been assessed by outdoors analysts to own them. The brand new studies underscore the vital standard warfighting roles of North Korea’s SRBM pressure, which performs lots of the key missions historically taken on by air forces. The launches additionally comply with via on the mandate of the February 2026 Ninth Occasion Congress to bolster SRBM deployments towards South Korea. Lastly, the North most likely wished to capitalize on the substantial press consideration given to Iran’s latest use of submunition warheads to trumpet its comparable capabilities.
Info to Date
Early April assessments. An unidentified North Korean missile was launched April 7, in line with the South Korean Ministry of Protection, reportedly displaying irregular early-stage flight. South Korean and Japanese protection sources then reported the launch of a number of unidentified ballistic missiles from North Korea on the morning of April 8 to a spread of 240 km, and the launch of a single missile that afternoon to at the least 700 km, probably on an irregular trajectory. The reported flight traits of the latter missile resemble these of the KN-23/Hwasong-11A SRBM.
On April 9, North Korean media reported the April 6-8 testing of an “electromagnetic weapon system, carbon fiber sham bombs scattering…and estimating fight utility and energy of cluster bomb warhead of tactical ballistic missile,” in addition to a “firing for testing the utmost workload of engine utilizing low-cost supplies.” The “cluster bomb warhead” was mentioned to have been flown on a KN-23, and the take a look at reportedly “confirmed” that the payload “can cut back to ashes any goal masking an space of 6.5~7 hectares [16-17 acres, or 0.065-0.07 sq km] with the highest-density energy.”
Mid-April assessments. The North launched about 5 SRBMs on April 19 to a spread of about 140 km, in line with the South Korean army. The subsequent day, North Korean press reported the April 19 launch of 5 “improved” Hwasong-11D (HS-11D) small, solid-propellant SRBMs with “cluster bomb warhead and fragmentation mine warhead” to a spread of 136 km. The warheads reportedly coated their targets over “12.5-13 hectares [31-32 acres, or 0.125-0.13 sq km] with the very excessive density.”
Kim Jong Un reportedly supervised the take a look at and mentioned that “the event and introduction of various cluster bomb warheads can meet the operational demand of the KPA [Korean People’s Army] in a extra passable and efficient approach…to spice up the high-density hanging functionality to quell a selected goal space in addition to the high-precision hanging functionality.” The warheads reportedly have been developed over a five-year interval by “a gaggle specializing in analysis into missile warheads.”
Evaluation
“Cluster bomb warheads.” These studies are the North’s most particular public references to submunition (cluster) warheads for its SRBMs, though SRBM drills in October and November of 2022 have been reported to have used “dispersion strike” and “dispersion warheads,” which most likely additionally meant submunition warheads. Submunitions present a longstanding means for missiles to distribute warhead results throughout a bigger space than doable for a single (unitary) warhead of the identical complete mass. This will higher cowl space targets reminiscent of airbases or dispersed troops, assist compensate for missile accuracy limitations, extra successfully disperse chemical or organic brokers, and complicate concentrating on of warheads by missile defenses. Soviet-made Scud and SS-21 SRBMs obtained by the North within the Eighties and Nineteen Nineties had submunition variants, and North Korea lengthy has been credited with submunition-armed SRBMs.
The brand new studies are important in that they particularly affiliate the KN-23 and HS-11D with submunition and “fragmentation mine” warheads, present sizes of areas purportedly coated by the warheads’ results, and within the case of the HS-11D take a look at, present a photograph claiming to point out a type of areas. As a tough benchmark, the Nineteen Nineties US ATACMS Block I SRBM carried a 500 kg submunition warhead that affected an space of about 3.3 hectares [8 acres, or 0.033 sq km] in comparison with the 6.5-13 hectares claimed for the North Korean SRBMs. As a result of there isn’t a info on the quantity, dimension/weight, composition, and launch altitude of the assessments, it’s tough to judge the veracity or effectiveness of the claimed affected areas, or examine the sizes of the claimed areas for the KN-23 and HS-11D. The photograph supplied by the North with the HS-11D take a look at exhibits many very small impacts unfold over a round space, suggesting a “fragmentation mine” warhead distributing many small bomblets fuzed to detonate above floor and bathe its goal with shrapnel.
Different doable warhead varieties. It isn’t clear from the North Korean media studies whether or not the “electromagnetic weapon system” and “carbon fiber sham bombs” are related to SRBM launches.
- The “electromagnetic weapon” is likely to be a jammer payload to assist an SRBM assault penetrate missile defenses, however may additionally check with a ground-based jammer or radiofrequency weapon to defend towards drones such because the drone-jamming “rifle” the North Koreans have depicted utilizing within the Ukraine conflict.
- The US first used warheads dispersing carbon/graphite fibers on Tomahawk land-attack cruise missiles to brief out electrical energy grids within the 1991 First Gulf Conflict, and aircraft-delivered gravity bombs with such payloads in Serbia in 1999. Thus, the North may need examined such a warhead on an SRBM however could have used a special sort of supply system.
Engine with low-cost supplies. The context of the April 9 report means that the brand new engine North Korea fired “for testing the utmost workload of engine utilizing low-cost supplies” was related to the unidentified SRBMs examined on April 7-8, or probably the KN-23. (It will appear uncommon to explain the warhead flown on the KN-23 however not a modified motor.) The big expenditures of SRBMs to be anticipated in fashionable standard battle, as underscored by the conditions in Ukraine and Iran, would definitely put a premium on with the ability to decrease the price of rocket motor manufacturing. However it’s unclear what measures are being taken to decrease price, or the diploma of price discount achieved.
Implications
The North’s conducting and publicizing these assessments underscores the vital standard warfighting roles of its SRBM pressure, which it depends on to carry out lots of the key standard missions historically taken on by air forces because of longstanding alliance air superiority on the Peninsula. Standard SRBMs would play a central function within the North’ potential to suppress alliance command/management, staging areas, logistics, airbases, ports, and different targets essential to army operations. This significance was straight acknowledged within the February 2026 Ninth Occasion Congress report, during which North Korea endorsed reinforcing SRBM deployments to “drastically enhance the density and sturdiness of concentrated assault” towards the South. Publicizing the newest SRBM assessments exhibits the North making good on this pledge. Lastly, the substantial international press consideration given to Iran’s use of submunition warheads within the latest battle—notably as a approach of penetrating Israeli and US missile defenses—is more likely to have motivated Pyongyang to trumpet its comparable capabilities at the moment.
