In this episode of History Date Night Justin and Jennie cover the beginning of the war in the west. In the space of about eighteen hours, Germany invades four countries at once. A fortress considered the strongest in the world falls to eighty men in gliders. Paratroopers try to kidnap an entire royal family and government in a single morning. And in London, a Prime Minister resigns and is replaced by the man who will lead Britain through the rest of this war. History Date Night is going to walk through this day almost hour by hour, because it's just that kind of day.