Post-conflict, regeneration of a credible nuclear deterrent capability will deter further aggression. This had the potential to render Britain's nuclear deterrent ineffective. Local defenses must be reinforced by the further deterrent of massive retaliatory power. The initial suggestion was that the toxins acted as a chemical deterrent to predators. The "Ohio"-class submarine was designed for extended strategic deterrent patrols. That is intended as a deterrent to shoplifting. The navy is responsible for the British strategic nuclear deterrent. This led to the development of a secret nuclear weapons program as an ultimate deterrent. Another possible deterrent to aspen regeneration is widespread wildfire suppression. Exile was an essential component, and was thought to be a major deterrent to crime. However, attempts to develop a stand-off nuclear deterrent eventually succeeded. It is not recommended to use unleashed dogs as a deterrent from bear attacks. Detection appears to be primarily a deterrent to evasion. More significantly the Alliance had a dispute over the future of Britain's independent nuclear deterrent. London saw cancellation as a reduction in the British nuclear deterrent.