Overview
- State media said Sunday that Kim Jong Un oversaw a ground firing of an upgraded solid‑fuel rocket engine made with carbon‑fiber composites and rated at 2,500 kilonewtons, without giving the date or location.
- Solid fuel shortens launch prep and makes road‑mobile missiles harder to spot, while carbon‑fiber cases cut weight and withstand heat to squeeze more performance from the same form factor.
- It was the first high‑thrust solid‑fuel engine disclosure since September 2025, when North Korea reported a comparable engine at about 1,971 kilonewtons.
- Analysts say the added power could support intercontinental missiles that fly farther or carry multiple warheads, with MIRVs allowing one missile to release several warheads to strain defenses.
- Outside experts note key proof will require flight and reentry tests that have not been shown, as KCNA also highlighted Kim’s reviews of a new main battle tank and special forces training under a five‑year modernization plan.