The Estonia commitment is a tripwire and integration tool

How useful is Britain's brigade commitment to Estonia, and should it be maintained?

Maintain it as a tripwire and NATO-integration tool, but resource the reinforcement plan so the promised brigade can arrive in time.

A forward presence acts as a political tripwire and creates sustained training with NATO allies. Britain does not keep the full promised brigade in Estonia during peacetime; the deployed force is the nucleus around which a larger wartime commitment would form. The weakness is reinforcement speed, because the full brigade may not arrive quickly enough for Estonia's immediate defence. The commitment is credible only when readiness and transport can turn the visible deployment into timely reinforcement.