# Did the United States need to use atomic weapons to end World War II?

The Allied victory in World War II came at a high cost to both sides. The Pacific theater was only won after the United States dropped two atomic bombs on Japan (the only time that nuclear weapons have been used in warfare). Was this decision necessary? Would the Japanese have capitulated due to conventional warfare anyway? Did the use of A-bombs hasten the end and actually save lives? Could the same goals have been achieved with just one of the bombs?

## The United States did need to use atomic weapons to end World War II
### Pro

* Pro The terrorist planes of Japan destroyed the majestic Pearl Harbor of the United States in December 1941. To send the reply of the attack to Japan, the US was to use the atomic weapons.
** Objection The nuclear attack was almost 4 years after Pearl Harbor, and killed several times more people—mostly civilians.
*** Objection The United States wanted a quick end to the war, which has already killed millions. China experienced the worst, with 20 million mostly civilians losing their lives under the Japanese war machine. The United States knew the Japanese were not going to surrender easily, so there were two main options; either undergo a land invasion, which would kill hundreds of thousands, possibly millions more, cost both countries dearly in terms of money, resources, life, and drag the war for many years, or to send a quick and decisive message to the Japanese government. The deaths in both Hiroshima and Nagasaki are only a drop in the bucket compared to the total death toll in World War 2. It was a necessary sacrifice that would ultimately save millions.
* Pro The Japanese mentality at this time was heavily based in loyalty to the emperor and Japan, even at the ultimate cost. The island-hopping campaign had been incredibly hard on both armies, but this Japanese mentality didn't seem to die. As the U.S. forces approached the Japanese mainland, the fighting was even more brutal. Iwo Jima and Okinawa combined killed a similar number of Japanese military and normal citizens as Hiroshima and Nagasaki, mainly in Okinawa. In Okinawa, close to 100,000 Japanese troops were killed as well as ~150,000 Okinawan civilians. It is certainly plausible that these numbers, representing about 1/4 of Okinawa's population, would be felt in mainland Japan, more likely several times over. The dropping of the atomic bombs was certainly morally grey, but it was a necessary evil to prevent unnecessary casualties.
** Objection It was not a necessary evil given the fact that the Japanese, at this point in the war, had given up on victory and were simply trying to negotiate a peace with the soviets, unaware of their looming invasion of Manchuria. The only reason that a peace hadn't been negotiated up to that point was because of the fact that the japanese government were still holding out hope for a soviet peace deal, eventually forcing them to negotiate with the Americans given the high support for peace in the japanese government

### Con

* Con The Japanese had already engaged in negotiations with the Soviets to end the war, they just needed more time to finalize the details and wrest control of Japanese society from the generals to the emperor.
** Objection Did it necessitate the US ceasing hostilities against Japan until negotiations were concluded, if they were to conclude, and possibly against American objectives?
* Con During The Fog of War biography of Robert Mcnarma, United States Secretary of defense, described the fire bombing of Japanese cities and the corresponding sized American cities. The number of cities is staggering large. In one night the United States burned to death 100,000 citizens of Tokyo. A much larger death toll then the combined nuclear attacks. The United States had no problem killing large numbers of Japanese. Ethically or physically. Would it be more moral to kill less Japanese and have 10,000s United States troops slaughtered on the beaches? Would you care to explain that at your impeachment hearings Mr. President? There was no question that the USA would use the nuclear bombs. Too much time, energy and effort went into producing them, to not use them. Could the USA have won the war without the nuclear bombs, yes, but how many more Japanese cities would be destroyed? What would 'victory' look like?
* Con As formulated, the answer is a clear and unequivocal no. Since, the question asks whether they did need, not whether it was the best course of action. Surely it was possible to end the war without the atomic weapons, at the cost of American lives. A more interesting question and the one usually discussed is whether the United States should have used the atomic weapons the way they did.