Levels of analysis on war

In his 1959 book Man, the State, and War he explains the causes of war by distinguishing three levels (or “images”): the individual, the state, and the international system. On each level can be found causes that lead to international conflict.

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries