We are going through a Dark Age: what I would personally term, the Post British Dark Age. The Second World War never happened! Sound shocked? You should not be, for after all, The First World War never actually ended. Indeed, what is termed The Second World War, as well as the Russian Civil War, the Korean War, the Conflict in Vietnam, and present troubles in The Middle East, are all, in truth, part of The First. You see, they divide it up into separate wars to make it more manageable to Historians.
Tragically, Great Britain had to relinquish its Overseas Colonial Empire, during the Middle of the 20th Century.