When 1) within countries there are economic conflicts between the rich/capitalist/political right and the poor/proletariat/political left that lead to conflicts that result in populist, autocratic, nationalistic, and militaristic leaders coming to power, while at the same time, 2) between countries there are conflicts arising among comparably strong economic and military powers, the relationships between economics and politics become especially intertwined—and the probabilities of disruptive conflicts (e.g., wars) become much higher than normal.
