The subtitle of this book could also be reworded as a question. How, indeed, do nations cope with crises such as war? With Upheaval, geography professor Jared Diamond puts forward a rather unorthodox suggestion for answering this question. Psychologists and specifically crisis therapists have gained a lot of insight into how individuals deal with and overcome crises in their personal lives. Taking a list of twelve factors that influence this, Upheaval is both a thought experiment and a piece of comparative history that tries to apply this framework to six nations that went through a crisis.