---
title: "North Korea Fired a Missile, Then Explained Why You Can’t Track Its Missiles"
description: "Kim Yo Jong says the 700 km and 680 km figures out of Seoul and Tokyo prove Pyongyang’s superiority, which is one way to read them"
author: "Nate Ledger"
published: 2026-10-03T11:31:16.637Z
modified: 2026-10-03T18:00:32Z
url: https://rews.cc/a/north-korea-fired-a-missile-then-explained-why-you-can-t-tra-f9c5d9
language: en
tags: ["north-korea", "missile", "military", "korea", "missiles", "asia"]
publisher: "Rews (https://rews.cc)"
---

# North Korea Fired a Missile, Then Explained Why You Can’t Track Its Missiles

*Kim Yo Jong says the 700 km and 680 km figures out of Seoul and Tokyo prove Pyongyang’s superiority, which is one way to read them*

By Nate Ledger · October 3, 2026 · https://rews.cc/a/north-korea-fired-a-missile-then-explained-why-you-can-t-tra-f9c5d9

## In brief

- North Korea fired one ballistic missile from Wonsan into the East Sea at about 6:30 a.m. on October 3, its 15th launch of 2026
- South Korea’s JCS said the missile flew over 700 km; Japan’s Defense Ministry said about 680 km
- Kim Yo Jong claimed the launch used a medium-range strategic missile with a skipping trajectory that defeats enemy tracking
- She said new technology allows at least four flight-trajectory modes and cited low-altitude maneuvering and AI; Kim Jong Un observed the drill
- The launch came three days after Seoul demanded an apology over a DMZ mine blast that wounded three South Korean soldiers

Here is a fun problem in arms-race epistemology. Early on Saturday morning, at about 6:30 a.m., North Korea fired a ballistic missile from the Wonsan area on its east coast into the sea. South Korea’s Joint Chiefs of Staff said the missile flew more than 700 kilometers. Japan’s Defense Ministry said about 680 kilometers. You might look at those two numbers and think: fine, the missile flew somewhere in the high 600s, everyone more or less saw it, the system works. Kim Yo Jong, the powerful sister of Kim Jong Un and the Workers’ Party’s general affairs director, looked at the same two numbers and reached the opposite conclusion. “Interesting numbers,” she called them, in a statement carried by the Korean Central News Agency roughly twelve hours after the launch, an unusual same-day disclosure. The discrepancy, in her telling, is not a minor disagreement between two radar networks. It is proof that South Korea and Japan lost the missile in flight.

Her argument, and it is worth taking seriously as an argument even if not as a finding, goes like this. The North has now conducted four launches of this general type, and each time, she said, the neighbors’ tracking gave out after what she called the first skip point of a “wave-style” flight trajectory. The missile goes up, comes partway down, skips back up, glides, maneuvers. Standard ballistic missiles trace a parabola that a radar can extrapolate; a missile that refuses to trace a parabola breaks the extrapolation. When the enemy’s radars lose contact, they fall back on drawing an extended line from the descent phase, which is why — her claim — the published ranges keep coming out shorter and weirdly inconsistent with each other. Seoul says 700-plus, Tokyo says about 680, and the gap between them is, in Pyongyang’s framing, not measurement noise but confession.

Kim Yo Jong put the conclusion bluntly, quoting the South’s and Japan’s figures before delivering her verdict:

> Of course we should not simply believe and be satisfied with the detection data the enemies publish, but these numbers allow us to gauge the limits of their detection capability and the special nature of our missiles.

She went further, preemptively mocking the standard technical explanation. The enemies, she said, “every time make the pathetic excuse that their detection capability is limited by the curvature of the Earth,” but in fact this is “proof of the perfection of our missile capability” and itself “the most scientific ‘acceptance indicator’” confirming the power and reliability of the North’s weapons systems. Which is a genuinely elegant piece of rhetorical judo: your adversary’s failure to observe your weapon becomes the certification of the weapon. The less they can see it, the better it must be. Heads I win, tails you filed an acceptance report.

She also offered some actual technical claims, attributed to officials of the Missile General Bureau reporting directly to the head of state — that is, Kim Jong Un, who observed the drill, described as a strategic-weapons launch exercise using a “medium-range strategic missile” carried out by a fire-unit with what was called a special mission. The bureau’s representatives reportedly told him that newly introduced technology allows at least four different flight-trajectory modes to be set depending on the purpose and target. Observers should recall, she said, earlier North Korean announcements about speed, the ability to change trajectory at low altitude, and the introduction of artificial intelligence. Her translation of all this: “In other words, it means there is virtually no way to avoid this strike.” Kim Jong Un, for his part, expressed confidence that no other country in the world would possess this level of technology for at least several years. You will be shocked to learn that the leader of North Korea rates North Korean missile technology very highly.

South Korea’s military, for what it is worth, is treating all of this as a hypothesis to be tested rather than a taunt to be answered. The Joint Chiefs of Staff said the exact specifications are under joint South Korea-U.S. analysis, tracked and shared from the earliest stages of the launch, and officials are leaving open the possibility that the North deliberately flew an MRBM (1,000 to 3,000 km) or IRBM (3,000 to 5,500 km) class missile at reduced range — which would itself explain a sub-700 km observed flight without any exotic mathematics. The mention of low-altitude trajectory changes has also raised the possibility that the missile was a relative of the Hwasong-16na, the North’s hypersonic medium-range ballistic missile, whose signature is exactly that skipping, pull-up-and-glide descent profile Kim Yo Jong described. Both readings can coexist: the missile may be genuinely tricky to track, and the North may be loudly overselling how tricky it is.

The launch did not happen in a vacuum, because in inter-Korean relations nothing ever does. It was the North’s 15th ballistic missile launch of the year and its first in 13 days, since September 20. More pointed was the timing relative to a landmine. Three South Korean soldiers were recently wounded by the explosion of a North Korean mine planted south of the Military Demarcation Line in the DMZ, in the sector of the 25th Division on the western front, and Seoul’s Joint Chiefs on September 30 demanded an apology and “responsible measures,” warning that all responsibility for what follows lies entirely with the North. Pyongyang’s response that same day, via Kim Yo Jong, was to call the incident “an obvious self-fabrication” and insist its soldiers had never once crossed the border line. She then spent a follow-up statement mocking President Lee Jae-myung’s Armed Forces Day remarks about easing military tensions as “the climactic scene of a clown show” and “part two of a self-made clown show,” and dismissed Unification Minister Chung Dong-young’s proposal for talks as “a delusion not worth answering and one-sided drivel.”

Three days after the apology demand, a missile. You do not need a doctorate in deterrence theory to read that sequence, though to be fair the causality is asserted by proximity rather than by anything Pyongyang said.

Seoul responded through the usual channels: the presidential office convened an emergency national-security situation review meeting and called for an immediate halt to launches, with the National Security Office saying the repeated ballistic missile launches are not only violations of UN Security Council resolutions but “a grave act that does nothing to help manage the current situation.” The JCS added that it maintains, under the South Korea-U.S. combined defense posture, “the capability and readiness to respond overwhelmingly to any provocation.”

I think the interesting question is who the Saturday statement was really for. A missile test generates its own data, quietly, in foreign radar logs. A missile test followed twelve hours later by a detailed communique explaining why your adversaries’ radar logs are embarrassing is a press strategy. The target audience is presumably less the engineers in Daejeon than the publics in Seoul and Tokyo, who are being told that the expensive early-warning architecture above them has a hole in it shaped like a skipping stone. Whether the hole exists is now, conveniently, very hard for anyone outside a classified briefing room to check. As verification regimes go, “our enemy’s confusion is our acceptance indicator” has the considerable virtue of being unfalsifiable. Which may be the most truthful thing in the whole release.

## Sources

- [김여정 “중거리전략미사일 훈련…한·일 탐지 제한”](https://chosun.com/politics/diplomacy-defense/2026/10/03/QTFKJYZCENBZ5AZLBHPCQP4U7U/) — chosun.com
- [North Korea fires ballistic missile towards the sea, South Korea says](https://aljazeera.com/news/2026/10/2/north-korea-fires-ballistic-missile-towards-the-sea-south-korea-says) — aljazeera.com
- [北, 김여정 조롱 하루 만에 탄도미사일 발사](https://chosun.com/politics/politics_general/2026/10/03/KVHAA3JUKVGPLLJGFCKU62YG7A/) — chosun.com