Different types of war

It is possible to identify different types of war. In below figure a taxonomy of wars is presented, including their respective numbers during the period 1495-1945.

 

pnas-fig-1

The taxonomy is based on a cyclical perspective and on the different purposes of wars. Two main categories of wars can be distinguished: systemic and non-systemic wars. Depending on their ‘purpose’, non-systemic wars can either be integration wars – closely related to the integration of the System’s core (Europe) – or expansion wars, which are manifestations of the expansion of the core (Europe) to the non-core, and of autonomous non-core war dynamics. Depending on the nature of their dynamics, integration wars can be chaotic or periodic in nature.