Answer:
The nuclear bombings carried out by the United States on Hiroshima and Nagasaki in 1945 served to put an end to World War II avoiding an invasion of Japanese territory, thus avoiding a large number of victims on the allied side.
But also, this bombardment demonstrated to the Soviet Union the military power that the United States possessed, as the first tensions that would later unleash the Cold War between both powers were already beginning to emerge. Thus, the nuclear bombardment put a limit to the conflictive will of the Soviets, who began to fear that, in the event of a possible subsequent war against America, it would use this type of bombs against them.