Being drunk on hubris and narcissism is the surest way to lose a confrontation to a clever, clearheaded opponent. It’s a story that’s been repeated throughout history.

Napoleon was a cocksure emperor and commander, a skilled battle tactician who became a master of propaganda in service of his own legend. In 1812, he invaded Russia, but in that campaign, his military innovating failed him.

The Russians used attrition warfare, retreating as Napoleon’s armies advanced, his supply lines unable to keep up adequately. By the time the French occupied Moscow, the Russians had Napoleon on their turf and the brutal Russian winter approaching. Napoleon entered Russia with hundreds of thousands of troops. He withdrew with only a fraction surviving.