Question

Why did the USA dropped the atomic bomb

Answer 1

“ … Germany had already been defeated. The war against Japan in the Pacific, however, continued to rage. President Harry S. Truman, warned by some of his advisers that any attempt to invade Japan would result in horrific American casualties, ordered that the new weapon be used to bring the war to a speedy end.”
www.history.com/this-day-in-history/american-bomber-drops-atomic-bomb-on-hiroshima