Besides the fact that the list of wars during history is VERY partial, omitting many big ones (in primis, the Arab invasion of Middle East, Europe and Africa which started in the 7th century and didn’t end yet), while including minor ones, one could do many predictions based on partial history, and they will all lead to wars (as war is a constant in human history, as the author says).

Additionally, also labor policies brought wars, probably most of them in recent history.