The RAF had over 50 radar stations across Britain which could find out about future attacks before the German aircraft managed to reach the coasts of Britain. This enabled them to prepare counter-attacks and their defense and ultimately rendered the German airforce completely useless. This is why Germans never managed to conquer the island.
The three things the National Security Act created were "Central Intelligence Agency, National Security Council, and Department of Defense." <span />
It is called impressment. The British would capture American ships and force them to work for the British.
Because the people who did live in the new world didn't have this technology therefore they didn't know how to fight back against it
