Big Boy Atomic Bomb was a Mark-4 atomic bomb dropped on Teng Sha Ho military base, outside of Dalian, Liaoning, China. Allied Command, under Matthew Ridgway, referred to the bomb as Bravo-Bravo, the NATO military code for B-B.
The atomic bombing took place during the Korean War, and was a major factor of the victory of the United States and South Korea in the war.
You may be thinking of "Little Boy."
https://www.history.navy.mil/content/history/museums/nmusn/explore/photography/wwii/wwii-pacific/bombardment-japan/bombs-atomic/little-boy-hiroshima.html
Big Boy Atomic Bomb was a Mark-4 atomic bomb dropped on Teng Sha Ho military base, outside of Dalian, Liaoning, China. Allied Command, under Matthew Ridgway, referred to the bomb as Bravo-Bravo, the NATO military code for B-B.
The atomic bombing took place during the Korean War, and was a major factor of the victory of the United States and South Korea in the war.
Everyone knows this is alternative history (fiction), right...? No atomic bombs have been used in war since Nagasaki.