I’m pissed the British didn’t finish the Crusades.
Richard Coer de Lion died in a battle on his home turf before he could return, and besides, he was more French than British. Saint Charles was captured and ransomed and never returned. The Mamluks got rid of the last vestige of crusaders and repelled the Mongols, too. The Islamic world was very victorious very often over Christendom until 1789, when Napoleon defeated them in Egypt. It’s been downhill ever since.