South Korea Warns North Korea Nears Nuclear ICBM

• South Korea’s defense minister has warned that North Korea is in the final stages of developing a solid-fuel intercontinental ballistic missile (ICBM).
• A successful test of such a weapon would give Pyongyang the ability to launch a surprise nuclear strike against the mainland United States.
• The warning follows a series of increasingly provocative missile tests by North Korea, which has also vowed to launch more military reconnaissance satellites.

Seoul has issued a stark warning that North Korea is on the verge of perfecting a solid-fuel intercontinental ballistic missile capable of delivering a nuclear warhead to the United States. South Korean Defense Minister Shin Won-sik stated that Pyongyang is in the “final stage” of development for this new class of weapon, which would significantly increase its strategic threat by allowing for a much faster and less detectable launch sequence compared to its current liquid-fueled missiles.

Growing Concern in Seoul

According to Seoul’s defense officials, Pyongyang has accelerated work on long-range nuclear delivery systems despite heavy sanctions and international pressure. The government stressed that such progress poses a direct threat not only to the Korean Peninsula but also to global security.

“We cannot ignore the reality that North Korea’s missile program is advancing at a pace that undermines regional and international stability,” a South Korean defense spokesperson said.

Escalating Weapons Tests

North Korea has carried out a series of missile tests in recent months, including launches of intermediate- and long-range ballistic missiles. Many of these tests are believed to be steps toward perfecting ICBM capabilities with the ability to carry nuclear warheads.

The country’s leader, Kim Jong-un, has repeatedly vowed to strengthen his nation’s nuclear arsenal, framing it as a deterrent against what he calls U.S. “hostile policies.”

South Korea urged the United States, Japan, and other partners to reinforce defense cooperation and maintain pressure on Pyongyang through sanctions and diplomatic efforts. Officials emphasized that coordination within the international community remains critical to halting North Korea’s missile ambitions.

“The threat extends beyond the Korean Peninsula. It is a challenge to global nonproliferation efforts and international peace,” the defense ministry said.

A New Level of Threat

According to Minister Shin, the primary remaining obstacle for North Korea is resolving an issue with the missile’s second-stage engine. “The last remaining problem is the second stage engine, but they will be able to fix it within the year,” he said in a recent interview. A successful test would represent a major technological leap for Pyongyang’s weapons program and a grave new challenge for international security.

Unlike liquid-fuel missiles, which require a lengthy and conspicuous fueling process before launch, solid-fuel missiles can be kept ready for immediate use. This dramatically shortens the warning time for a potential strike, making it much harder for adversaries to preemptively destroy the missile on the ground. North Korea has conducted several tests of its new Hwasong-18 solid-fuel ICBM, demonstrating its commitment to overcoming the final technical hurdles. The successful deployment of this system would give North Korean leader Kim Jong Un a more credible and survivable nuclear deterrent.

The heightened alert comes as Pyongyang continues to aggressively advance its military capabilities. North Korea has conducted a flurry of missile tests in recent months and has also signaled its intent to launch additional spy satellites, further violating United Nations Security Council resolutions.