Why did the japanese finally surrender on september 2, 1945?

The war reached a crescendo in early August 1945, when Hiroshima and Nagasaki were struck with atomic bombs. On August 15, Japanese Emperor Hirohito accepted the terms that the allies had outlined for Japan's surrender in the Potsdam Declaration, and finally, on September 2, Japan surrendered formally

basically america droped bombs and caused devastation

The dropping of the Atomic Bombs on both Hiroshima and Nagasaki caused great fear that the United States harbored more bombs despite the fact at the time that those were the only bombs made. In other words: The war reached a crescendo in early August 1945, when Hiroshima and Nagasaki were struck with atomic bombs. On August 15, Japanese Emperor Hirohito accepted the terms that the allies had outlined for Japan's surrender in the Potsdam Declaration, and finally, on September 2, Japan surrendered formally.

Happy to help! :)

Spanish conquistadors demanded labour from natives.