‘Bad news for South Korea’ as US-Russia nuclear pact expires, sparking fears of arms race

South China Morning PostEN 1 min read 100% complete by Park Chan-kyongFebruary 6, 2026 at 03:00 AM

AI Summary

short article 1 min

The expiration of the New Strategic Arms Reduction Treaty (New START) between the US and Russia is raising concerns about a potential nuclear arms race and its impact on North Korea. The treaty, which limited nuclear warheads and delivery systems for 15 years, provided stability and transparency. Analysts fear its lapse will weaken international pressure on North Korea to denuclearize, potentially emboldening Pyongyang to expand its nuclear program. Experts suggest this development could increase pressure on South Korea and Japan to strengthen their defense capabilities, as they rely on the US nuclear umbrella. The situation prompts calls for South Korea to bolster its security posture amid concerns about reduced US regional engagement.

Key Entities & Roles

Key Player Opposition Context

China 50% Japan 50% Sejong Institute 50% Shin Beom-cheol ×270% New Strategic Arms Reduction Treaty (New Start) ×275% Russia ×380% United States ×380% South Korea ×385% North Korea ×690%

Keywords

nuclear arms race 90% north korea 80% nuclear ambitions 70% new start treaty 70% south korea 60% denuclearisation 60% regional security 50% nuclear weapons 50% us nuclear umbrella 40%