KN-25
Overview (BLUF)
The KN-25 is a North Korean 600mm super-large multiple launch rocket system (MLRS), first publicly displayed in 2019 and test-fired 2019–2020. Firing unguided or semi-guided 600mm rockets to ranges of approximately 380 km, the KN-25 bridges the conceptual gap between conventional artillery and short-range ballistic missiles. Its primary role in DPRK doctrine is saturation fire against hardened targets — airfields, logistics nodes, forward-deployed US/ROK forces on the Korean Peninsula.
The strategic significance in the current period is the same as KN-23: confirmed large-scale transfer to Russia for use in the Ukraine War. Unlike the KN-23 (precision SRBM), the KN-25 provides Russia with a high-volume, extended-range artillery capability complementing its existing MLRS fleet (BM-30 Smerch, TOS-1A) and compensating for depleted Russian artillery ammunition stocks. Transfers were first confirmed by US intelligence in late 2023 and have involved hundreds of thousands of rounds.
Technical Specifications
| Parameter | Value |
|---|---|
| Type | Super-large MLRS |
| Calibre | 600 mm |
| Range | ~380 km (estimated) |
| Guidance | Inertial + terminal (semi-guided variant) |
| Payload | Large conventional HE; thermobaric variants |
| Launch platform | 8×8 wheeled TEL |
Operational Use — Ukraine War
KN-25 rockets have been documented in Ukraine through:
- Physical recovery and analysis of rocket body fragments with DPRK production markings
- Satellite imagery of DPRK ammunition depots showing inventory drawdown correlated with Russia transport patterns
- US intelligence declassified briefings attributing specific strikes to KN-25 warhead fragmentation signatures
Assessment (High): At the volume of transfers confirmed (multiple million rounds estimated by early 2026), KN-25 ammunition constitutes a material factor in sustaining Russian artillery rates of fire on the Ukrainian front — contributing to the attritional dynamic that has characterised the war’s static phase. This transfers combat experience data back to DPRK, providing indirect intelligence on munitions performance in high-intensity warfighting.
Key Connections
- North Korea — developer and supplier
- KN-23 — companion DPRK precision-strike SRBM also transferred to Russia
- Ukraine War — primary operational theatre
- Russia — recipient and user
- United States — primary confirming intelligence source
Sources
- US National Security Council briefings (2023–2025). Confidence: High.
- Congressional Research Service, North Korea’s Weapons Transfers to Russia (2024). Confidence: High.
- IISS, The Military Balance 2025. Confidence: High.