The 'kill chain' is the doctrinal framework describing how a target is discovered, fixed, hit and assessed. Understanding it is essential for defence: it means knowing how you are observed, and where the enemy cycle can be broken. This chapter is entirely defensive — it describes the cycle to avoid it, NOT to employ it.
Kill chain phases (F2T2EA)
The NATO acronym F2T2EA describes the standard cycle: Find, Fix, Track, Target, Engage, Assess. On the Ukrainian front the cycle closes in times ranging from minutes to seconds thanks to drone-artillery-EW integration.
| Phase | Meaning | Typical means |
|---|---|---|
| Find | Discover target existence | ISR drone, SIGINT, OSINT, ground observer |
| Fix | Locate precisely | DF triangulation, drone telemetry, observation intersection |
| Track | Maintain movement awareness | Continuous drone overflight, SIGINT monitoring |
| Target | Decide engagement, choose means | C2 (Command & Control), effect / resource assessment |
| Engage | Strike | Artillery, FPV, missile, loitering munition |
| Assess | Evaluate effect, repeat if needed | Post-impact drone, BDA (Battle Damage Assessment) |
Cycle compression on the Ukrainian front
The distinctive feature of the 2022-2026 front is temporal compression of the cycle. What previously took hours or days now closes in a few minutes.
- Find: Mavic ISR drone over area, cost $5,000, range 10+ km
- Fix: drone pilot passes MGRS to firing unit via Kropyva / Delta
- Track: drone stays airborne, confirms position, provides correction
- Target: firing decision within 1-3 minutes via digital kill chain
- Engage: 152 mm artillery fires within 1-2 minutes; FPV in 5-10 minutes if available
- Assess: drone observes impact, decides second salvo if needed
On active front, Find-to-Engage cycle measured by OSINT across many publicly documented incidents is 2-15 minutes from discovery to first impact. It is the key metric of the era.
The drone-artillery cycle
Drone-artillery integration is the technical engine of the modern kill chain. Understanding it as target is the key to defensively breaking it.
- ISR drone (Mavic, Autel, Orlan-10): observes, identifies, geolocates
- Datalink: sends coordinates to fires centre via encrypted radio or military app
- Management system (Ukrainian Kropyva, Russian equivalents): computes firing data
- Artillery: fires within brigade-expected time
- Spotter: drone stays airborne, communicates corrections round-by-round
- Continuous loop: drone stays over area until target neutralised
If you were 'seen' by a drone, you have 2-15 minutes to leave the lethal centre (50-100 m radius). If you do not move, impact comes. If you move predictably, the drone updates coordinates.
Defensive kill-chain breakpoints
Defensively, every phase of the kill chain is an opportunity to be missed. You do not need to break the whole chain — one link is enough.
| Enemy phase | Friendly defensive break |
|---|---|
| Find | OPSEC: no smartphone, no photos, dispersion, no recurring pattern of life |
| Fix | Mobility: frequent position change, thermal camo, overhead cover |
| Track | Friendly anti-drone EW, observation cover, multiple hides |
| Target | Saturate enemy C2 with multiple small presences instead of one priority cluster |
| Engage | Overhead cover, physical dispersion, anti-drone netting on vehicles |
| Assess | Reduce post-impact emissions, never confirm BDA in clear, move away |
Inverse kill chain: breaking your own visibility
- Pre-Find: never be a discoverable target — OPSEC discipline, dispersion, multi-domain camo
- If Find happened: break Fix with immediate movement, cover, deception
- If Track is ongoing: find overhead cover, reduce emissions, wait for window (weather, friendly EW)
- If Target is processing: move away from known position within 5-10 minutes
- If Engage is imminent: seek overhead protection, dispersion, alternate firing position
- Post-Engage: move, reduce emissions, confirm nothing, reassess picture
Enemy-side kill chain — awareness
Knowing how the enemy kill chain works is defensive information, not offensive. It means knowing its weaknesses and when to expect what.
- Russian dependence on Orlan-10 / Zala for ISR — downed reduce local kill-chain tempo
- Ukrainian dependence on Mavic / Autel — vulnerable to Russian EW, but fiber-optic backups expanding
- Reaction times: Russian artillery slower on deep targeting, Ukrainian faster with HIMARS PGM
- Saturation: enemy C2 has limited capacity to handle many targets — saturating it is legitimate defensive strategy
- Night: night kill chain depends on thermal, useful window under certain weather
- Pattern: drone flight hours are pattern-of-life exploitable defensively
Common mistakes
- Thinking kill chain requires hours — on Ukrainian front it is minutes
- Staying in position because "we haven't been hit so far" (enemy Assess is coming)
- Confirming evasion of an attack on radio (Engage failed = Assess in progress)
- Underestimating "small" ISR drones — Mavic is the main Find/Fix node
- Neglecting OPSEC because "we are far from the front" — OSINT kill chain reaches everywhere
- Concentrating defence only on final Engage rather than breaking cycle earlier
Lessons learned Ukraine
The 2022-2026 front turned the kill chain into a daily operational metric. Surviving brigades structured defence around breaking specific links: anti-drone EW to break Find/Fix, thermal cover to break Track, dispersion and overhead cover to limit Engage effect, post-impact discipline to deny Assess. Operational synthesis: 'Artillery doesn't kill anymore — the kill chain kills. Artillery is only the last step.' Whoever understands the chain lives. Whoever doesn't dies at Engage having never perceived the previous four phases.