Question

"what is the right way to narrow down this research question? broad question: how did the atomic bomb change military strategies after world war ii?"

Answer 1

The atomic bombings of Hiroshima and Nagasaki were nuclear attacks ordered by President Truman against the Empire of Japan. The attacks were carried out on August 6 and 9, 1945, respectively, which contributed, together with the Soviet-Japanese War, to the surrender of Japan and the end of the Second World War.

With the Manhattan project, nuclear weapons continued to be built. Although it was very secret, the information leaked to the Soviet Union, with which the US lost its nuclear hegemony.

In this way, both countries agreed on the non-use of nuclear weapons in war conflicts (Nuclear Non-Proliferation Treaty), since they knew that a large-scale nuclear war would put at risk the very existence of a large part of the world's population.

Answer 2

  The devastating bombing created a permanent stigma and fear of these powerful weapons that changed how we viewed warfare forever.  The cold war stayed cold because all parties on all sides knew that if a war took place where the nuclear option was executed by both sides, life on earth would come to an end.  Many can only hope that the warning those nightmare images from Hiroshima continue to scare the world away from ever using these horrible weapons again.