 Conventional armies face political attrition for each action they take.Insurgent forces can cause harm and create chaos (whereby the conventional army suffers a loss of confidence and esteem); or they can drive the conventional elements into an attack which further exacerbates the civilian condition.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.