North Korea’s Diversified Missile Tests Put Greater Strain on South’s Defenses
A broader mix of ballistic missiles, cruise missiles and sea-based launch platforms is expanding the challenge facing South Korean and US defenses, although key North Korean performance claims remain unverified.
North Korea has sharply broadened the range of missiles and launch platforms it is testing, increasing the complexity of the threat facing South Korean and US defense systems even as doubts remain about some of Pyongyang’s claimed capabilities.
The North conducted 16 ballistic missile launches through Oct. 12 this year, compared with six in all of 2025 and 12 in 2024. It also carried out cruise missile tests on seven occasions through Oct. 14. Those launches involved mobile land systems, two destroyers and what Pyongyang described as a submarine platform.
The growing variety matters because weapons approaching from different directions and at different altitudes can place greater pressure on surveillance and interception networks. Recent tests have included missiles designed to maneuver during flight, systems carrying heavier warheads and weapons intended to scatter smaller explosives over a wider area. North Korea has also paired missile activity with rockets and attack drones in combined exercises.
Analysts say combat data linked to Russia’s war in Ukraine may have helped North Korea improve the consistency and accuracy of some short-range weapons. Pyongyang has sent troops to support Russia and supplied ballistic missiles, creating a possible channel for operational feedback. However, the extent of any improvement cannot be independently established from North Korean announcements alone.
Several recent tests illustrate both the potential threat and the uncertainty. One tactical ballistic missile fired on Oct. 12 was assessed by a South Korean defense expert as carrying a 2.5-metric-ton warhead and traveling nearly 1,000 kilometers. In April, North Korea claimed five missiles struck an area of between 12.5 and 13 hectares, but that damage estimate was not independently verified.
Disagreement over an Oct. 3 launch also highlights the limits of available information. Pyongyang said the missile flew about 1,000 kilometers, while South Korea assessed a distance of more than 700 kilometers and Japan estimated roughly 680 kilometers. Experts also remain skeptical that the North has demonstrated a reliable ability to strike the US mainland.
South Korea, meanwhile, conducted the first test of a domestically developed hypersonic glide vehicle on Oct. 8. The system remains under development. Seoul’s Joint Chiefs of Staff has said existing South Korean and US defenses can detect and intercept the North’s recently launched missiles.
Defense specialists nevertheless warn that coordinated attacks using missiles, rockets and drones could strain or overwhelm air defenses. They have called for stronger low-altitude surveillance, faster real-time information sharing among South Korea, the United States and Japan, and continued improvements to layered interception systems.