Little Boy, the first nuclear bomb dropped in anger. In our timeline, the United States of America dropped this bomb as part of the Potsdam Declaration on the Japanese city of Hiroshima early in the morning of August 6th, 1945. The Japanese ignored this plea for unconditional surrender, and the rest is history.
That is the history from our point of view, in our own currently livable timeline. However, things went down much, much differently in the alternate history I’ve spent the year teaching you. If you remember our most recent lesson, the atomic bomb directly led to the discovery and stranding of an alien race. Also, you will know from previous lessons, WW2 happened in our other history, it was just the opposite version. England was the bad guy. I provided the outcome of this war, but I only hinted at the steps that got there.
Eventually, after years of fighting, England was cut off from the rest of the world. Their vast empire was divided up and cut off from everyone. Germany, and the USSA had successfully claimed, or liberated all previously occupied British colonies. The only British place left was the Island of Great Britain.
The D-Day invasion went successfully for the most part, but on the Island itself the English were able to fight back, and gain ground very quickly. Knowing that it would be a door to door fight to the death of every inhabitant of the nation, the powers to be decided to withdraw troops from the island, and blockade it. They then conducted daily bombing raids until the will was broken. It never broke.
Eventually, the USSA developed nuclear weapons. Being somewhat nice, they initially decided to bomb the Blackpool area as a sign of the power of the bomb. England took no notice of it. Come back later in the week to find out what happens next.