The Causes of War: Volume 2:
1000 CE to 1400 CE
This is the second volume of a projected three-volume series charting the causes of war from 3000 BCE to the present day. It is written by a leading international lawyer, and uses as its principal materials the documentary history of international law, largely in the form of treaties and the negotiations which led up to them. These volumes seek to show why millions of people, over thousands of years, slew each other. In departing from the various theories put forward by historians, anthropologists, and psychologists, Alexander Gillespie offers a different taxonomy of the causes of war, focusing on the broader settings of politics, religion, migrations, and empire-building. These four contexts were dominant and often overlapping justifications during the first four thousand years of human civilization, for which written records exist.