Is Russia’s invasion of Ukraine ‘a turning point in history’? Does it spell the end of the American era, and the beginning of a new Cold War between the West and a Russo-Chinese axis of authoritarians?

Some invoke the image of 1939. After assuring the world that he was interested only in protecting his fellow Germans in the Sudetenland, Adolf Hitler annexed the rest of Czechoslovakia and then invaded Poland, setting off world war two.