Cashman: What Causes War?

Cashman, Greg. 1993. What Causes War?: An Introduction to Theories of International Conflict. New York: Lexington Books.

This book is a wide ranging overview of the different causes of war organized by levels of analysis.”Clues to the cause of war may be found in a variety of different locations. The causes of war may be said to exist at several levels of analysis. While there are different views of the number and identity of levels of analysis, we will examine theories of war at five levels: the individual, the small group, the state, the interaction between two states, and the international system” (13).

At the level of states—where internal conflict can foment external conflict—Blainey argued that about 50% of wars in the 19th and early 20th centuries were “immediately preceded by civil conflict in one of the belligerent nations” (147). This is referred to as the “kick them while they’re down” theory of war. The “scapegoat” theory of war, or the diversionary conflict theory, has been supported by Rosencrance. Lebow also supports this argument by presenting the case for “brinksmanship crises”. Maoz argues that revolutionary transformations create a context where states are likely to either be the perpetrator of international violence or the recipient. Rummel explored this empirically and found that internal and external conflict are not related. Wilkenfeld argued that this lack of a finding was the result of Rummel grouping all regime types into the same analysis and not breaking them out at all.

There is obviously much more than this brief abstract, though this piece was the one that I was most interested in at the moment.

UPDATE:

ToC:


The individual Level of Analysis: Human Aggression
The Individual Level of Analysis: Psychological Explanations for War
Governmental Decision Making
The State and International Conflict
International interaction: Stimulus-Response Theory and Arms Races
International Interaction: Game Theory and Deterrence
The International System: Anarchy and Power
The International System: Cyclical Theories and Historical Structural Theories of War

UPDATE II:


The book begins by claiming that there is both good news and bad news about "war". First, big wars are less frequent than they used to be. Second, they are more deadly. Third, intra-state wars are more prevalent. Fourth, inter-state wars are incredibly rare, especially when all possible dyads are taken into consideration.

The introduction then goes on to explore different explanations for the causes of war from the perspective of different levels of analysis. These levels are the following: the individual level, the substate level, the nation-state level, the dyadic level, the international system level and then analyses that take place across levels, or multilevel analysis.

The book then thoroughly explores major wars of the 20th and 21st centuries from the perspectives of these levels of analysis.