Provider of in-depth & balanced analysis on hot issues around the world

Successful North and South Korean satellite launches underscore both countries’ ambitions to possess an independent space-based intelligence, surveillance and reconnaissance capability to support their respective deterrence postures. Paradoxically, better ISR capabilities may also improve stability on the Korean Peninsula. Within two weeks, North and South Korea have each successfully launched their first military geospatial imaging satellites. Although the information-gathering capabilities of North Korea’s satellite are probably inferior to South Korea’s, Pyongyang will likely improve this over time, possibly with Russian assistance. Space-based systems will increase Pyongyang and Seoul’s capability to hold each other’s territory at risk, but paradoxically may also improve stability.

Targeting tactics

Space-based intelligence, surveillance and reconnaissance (ISR) systems play an important role in the so-called ‘kill-chain’ through which militaries detect, track and engage targets with precision-strike systems. Pyongyang and Seoul possess large arsenals of precision-guided ballistic and land-attack cruise missiles, but their respective ISR capabilities to inform targeting decisions are less mature by comparison. North Korea has developed several types of uninhabited aerial vehicles (UAVs) for ISR purposes, but sensor, endurance and communications constraints limit their utility, and they are vulnerable to South Korean and United States air defences. South Korea has more advanced ISR capabilities, but it has historically relied on United States space-based assets for its geospatial imagery needs. 

North Korea said that it developed a space-based ISR capability to provide its armed forces with ‘real-time information’ to improve its ‘war deterrent’. Following the successful launch of the Malligyong-1 satellite on 21 November, North Korean leader Kim Jong-un said that it provided North Korea with ‘eyes’ to complement its ‘fist’. To underline this point, North Korean state media claimed the satellite imaged Andersen Air Force Base on Guam and other ‘ major targets in the enemy region’ that North Korea could target in a conflict, without releasing imagery. Similarly, South Korea said that it is developing its space-based ISR capabilities to enhance the effectiveness of its so-called 3K deterrence architecture. It envisages South Korean forces detecting and targeting North Korean missile launchers and command-and-control in the event of an imminent or unforeseen North Korean missile launch. Both countries have made clear their recent launches are merely a first step to building out a space-based ISR layer. North Korea has said that it will launch an unspecified number of satellites in the future. Seoul plans to follow the 1 December launch of a SpaceX Falcon 9 rocket with the deployment of four synthetic-aperture radar satellites by 2025, giving it an all-weather capability.

Launch implications

Although North Korea’s launch is an achievement for Pyongyang after earlier launch failures, the satellite’s likely poor image quality might provide limited initial returns. After a prior North Korean launch of a military-satellite similar to the Malligyong-1 failed, South Korean and US investigators judged, based on recovered parts, that the payload had ‘no military use’, suggesting its sensors and communication equipment were of poor quality. Even so, the successful launch on 21 November provides Pyongyang with an independent capability that will likely mature through domestic refinement, illicit acquisitions and potentially foreign assistance. South Korea claims that Russia provided unspecified input on the Chollima-1 satellite-launch vehicle (SLV) following two failed launch attempts earlier this year. Russian President Vladimir Putin also apparently pledged to provide support for North Korea’s space programme during a September meeting with Kim at the Vostochny Cosmodrome, possibly as repayment for much-needed ammunition to support Moscow’s war in Ukraine. Because SLVs incorporate dual-use components and technologies that can also be used in ballistic missiles, Pyongyang’s satellite launch was condemned by France, the United Kingdom and the US as destabilising and a violation of multiple United Nations Security Council Resolutions related to North Korea’s sanctioned ballistic missile programme. The Chollima-1 SLV’s first-stage rocket motor, for instance, is derived from the Soviet-designed RD-250 engine that has powered several different North Korean intercontinental ballistic missiles, such as the Hwasong-14, Hwasong-15 and Hwasong-17. An advancement in North Korea’s SLV capabilities will undoubtedly have some benefits for its ballistic missile programme. Although Pyongyang regularly tests ballistic missiles, it is unlikely to have used this launch to disguise testing military capabilities related to its missile programme. South Korea’s military space programme also has received some external assistance. The country launched its satellite on a SpaceX Falcon 9 SLV from the US government’s Vandenberg Space Force Base. Future satellite launches might continue to use US technology alongside South Korea’s burgeoning SLV capability.

Supporting stability

Perhaps paradoxically, Pyongyang and Seoul’s new space-based ISR capabilities may have some unexpected stability benefits by reducing mutual fears of pre-emption. In a crisis, a lack of information may exacerbate pre-emption fears and could trigger escalation. South Korea’s deterrence doctrine is based on Seoul’s fear that North Korea may pre-emptively use conventional or nuclear weapons against it. North Korea is arguably concerned about South Korea’s analogous precision-strike capabilities, evidenced by recent changes to its nuclear doctrine to delegate launch authority if Kim were killed. Although space-based ISR will allow North and South Korea to target each other more effectively in a conflict, their new capabilities might also be useful in a crisis by providing Pyongyang and Seoul with greater situational awareness that could reduce the risk of inadvertent escalation.