War World II ended in 1945... for the majority of the world. Although Japan had technically surrendered, four Japanese soldiers in the Philippines continued to fight. Two of them died and one gave in, but Hiroo Onoda kept fighting (alone!) until 1974, meaning that he missed out on the moon landing, Japan's automotive boom, and The Beatles.
Sometimes I'll be debating the minutia of a point, and I'll suddenly realize that nobody else cares anymore. It doesn't matter who has won. The point is that the war is over, and you don't want to be the stubborn idiot missing out on the after-party.