23 July 2014

Editorial: North Korea’s Asymmetric Submarine Doctrine


By Koh Swee Lean Collin

While North Korean submarines may be technologically dated, its access denial strategy can still be effective.

North Korean leader Kim Jong-Un made headlines last month when he visited the Korean People’s Army Naval Unit 167, part of the Korean People’s Navy (KPN) East Sea Fleet unit based in the South Hamgyong province. Photographs released by the Korean Central News Agency showed Kim on a rusty green-painted submarine No. 748, toying with the periscope in its control room. Kim also reportedly guided an actual drill onboard.
Many foreign analysts used Kim’s visit to comment on the decrepit state of the submarine he was visiting. For example, South Korea’s Defense Ministry spokesman, Kim Min-Seok, remarked that: “It appears that Pyongyang aims to show off its submarine might, but the submarines that our Navy holds are far superior, as ours do not make much noise and it can stay underwater far longer.”
The Technological Gap
This view is not without merit. From a strictly technical standpoint, submarine No. 748 – a Soviet-era Romeo (or possibly the Chinese Type-033 variant built by North Korean shipyards during the Cold War) – represents a bygone era. The Romeo/Type-033, which displaces 1,800 tons when submerged, traces its roots back to the German World War-vintage U-boat technology that was incrementally improved upon in the 1950s prior to being mass produced by the Soviets. Its combat systems, propulsion and quieting characteristics are considered obsolete by today’s standards.
This stands in stark contrast to the Republic of Korea Navy’s (ROKN) growing stable of modern submarines, including the KSS-1 Chang Bogo and the even more capable KSS-2 Sohn Won-Ilbased on the German Type-209/1400 and Type-214 respectively. North Korea’s vessels lack any missile capabilities and can only fire short-range, Cold War-vintage torpedoes. By contrast, ROKN submarines are equipped with the UGM-84C Sub-Harpoon sea-launched anti-ship missiles, which are capable of destroying enemy warships from 60-miles away. They also boast new German-made heavyweight homing torpedoes. The key difference between the two undersea fleets, however, are South Korea’s state-of-the-art combat systems, which are typically comprised of an integrated, digitalized command and control suite, sonar and electronic warfare equipment, as well as quieting features.
Thus, North Korea’s submarine capabilities are a far cry from those of its erstwhile Southern adversary. Moreover, the inter-Korean submarine technological gap will further widen when South Korea’s new submarines, notably the KSS-3, come online soon. 

Read the full story at The Diplomat