Kim Jong Un brings his family to a hypersonic missile launch

By Margaret Hale · 2026-10-06

A family outing, of a kind

The stagecraft of Saturday's launch deserves a moment's attention. Kim Jong Un did not merely observe an intermediate-range missile lift from the Wonsan coastline at dawn. He brought his daughter. And his wife. State media published the photographs with evident purpose, and the vocabulary Kim chose afterwards, reliability, efficiency, mobility, carried the precision of someone who knows exactly what the word "deterrent" is doing in a sentence.

At dawn on 3 October, North Korea conducted a firing drill of an intermediate-range strategic missile from its eastern region toward the East Sea, framed by Pyongyang as a training exercise for soldiers operating its hypersonic strategic weapon system.^[1] State agency KCNA said the drill aimed to evaluate the reliability, efficiency and mobility of the country's war deterrent.^[1]

What Kim said at the launch site

Kim addressed assembled troops with language that balanced operational confidence against standing threat. According to KCNA, Kim said that through the launching drill, the strategic missile soldiers had fully demonstrated their professional qualifications and counterattack posture, clearly showing that they are very good at operating the major offensive weapon system and they are always available for mobilisation, and that they also added confidence to the country's deterrent.^[1]

Kim then framed the exercise as a continuous obligation rather than a one-off demonstration. The country must continue responsible efforts nonstop to constantly and repeatedly make the enemy recognise the reliability and fatality of its strategic offensive means, he said, describing this as a form of exercising deterrent.^[1] Standing beside him throughout, according to photos published by KCNA, were his daughter Ju-ae and his wife Ri Sol-ju.^[2]

What the allies detected

South Korea's Joint Chiefs of Staff detected the missile being launched from the Wonsan area at about 6:30 a.m. and tracked it over a distance of more than 700 kilometres.^[3] Japan's Defense Ministry recorded a maximum altitude of about 90 kilometres and a flight range of about 680 kilometres, and said the missile fell outside Japan's exclusive economic zone.^[4]

The relatively low apogee is a signature of hypersonic glide systems, which are engineered to stay inside the atmosphere rather than arc high above it. That trajectory is precisely what makes them awkward for existing defence networks to engage.

Why hypersonic systems complicate defence

Conventional ballistic missiles follow a predictable parabolic arc that tracking radars and interceptors are designed around. Hypersonic weapons travel at speeds greater than Mach 5, are capable of manoeuvring in flight, and spend most of their flight path inside the atmosphere, making them difficult to intercept by conventional missile defences.^[5] Radars built to track high-arcing ballistic trajectories are not well positioned to follow a target that hugs the atmosphere and changes course mid-flight.

North Korea has progressively expanded its hypersonic weapons programme, with systems Pyongyang describes as solid-fuel intermediate-range missiles fitted with glide bodies capable of unpredictable manoeuvres. Saturday's drill, conducted at first light from the east coast, was the latest public demonstration of that programme's operational ambitions. South Korea and Japan's joint detection network logged the launch within minutes; the Joint Chiefs of Staff statement gave no indication that any interception was attempted.

Margaret Hale

Margaret Hale writes about politics, policy and the culture of business. She is drawn to the people behind decisions and to the moments when a political story turns out to be a human one.