Should US have dropped the atomic bomb on Japan?

The US should have dropped on the atomic bomb on Japan. Since the start of World War 2, Japan has been invaded many Asian countries, some of which were much bigger than itself. This caused the Allied forces to see Japan as a major threat, for fears that the war would spread to their countries. The US had taken steps to stop the war. They include the extensive bombing of major Japanese cities, which destroyed more than 40 percent of these places on avcerage. Despite the severe loss, Japan stubbornly refused to surrender. Japan's allies, Germany and Italy, had also come under attack by the Allied forces but they surrenderred by the end of April 1945. In an effort to force Japan to surrender, the US gave Japan the Potsdam Ultimatum, which stated that if Japan did not not surrender, it would result in "the inevitable and complete destruction of the Japanese armed forces and just as inevitably the utter devastation of the Japanese homeland". Despite the previous bombings and the ultimatum, Japan still decided to carry on with the war. This proved the conventional bombing that the US had carried out ineffective as it did not bring Japan anywhere near surrenderring despite the great amount of damages done to major cities. Hence, the US decided to drop the atomic bomb, the bomb that could wipe out an entire city.