A. Royden D'souza

World War II began on 1 September 1939, when Adolf Hitler began his campaign to liberate Germans in Poland. German forces used a rapid military strategy known as Blitzkrieg, combining tanks, aircraft, and infantry to overwhelm Polish defenses quickly.

While the rise of fascism and the failure of Versailles dominate the political narrative, the true catalyst for global collapse was an economic heart attack that began in Vienna and Wall Street and spread like gangrene through a weakened world.