With the dust still settling after the end of World War II in Europe, British Prime Minister Winston Churchill set his sights on the next threat to Western Democracy: the Soviet Union.
"You think destruction is your ally? You merely adopted destruction. Russians were born in it, molded by it."
With Russian superiority in mainland Europe, the hypothetical rocket-based devastation of the British Isles in the scenario, and the insistence of President Truman that the United States would not participate, Churchill shelved the idea forever.