The major militaries of today are largely set up to fight the "last war" (previous war) and hence have huge armoured and conventionally configured infantry formations backed up by air-forces and navies designed to support or prepare for these forces. Many are today deployed against guerrilla-style opponents where their strengths cannot be used to effect. The mass formations of industrial warfare are often seen as much less effective than the unconventional forces that modern militaries may also possess. The new opponents operate at a local level, whereas industrial armed forces work at a much higher "theatre" level. The nervous system of these new opponents is largely political rather than military-hierarchical and adapted to the local supporting populace who hide them. The centre provides the political idea and driving logic, perhaps with overall direction and some funding. Local groups decide their own plans, raise much of their own funding and may be more or less aligned to the centre's aims. Defeat of guerilla forces (when revealed) does not disable this type of organisation, many modern attack strategies will tend to increase the power of the group they intend to weaken. A new more political strategy is perhaps more appropriate here - with military backing. Such a strategy has been illustrated in the war against the IRA, though an adoption and codification are unclear.