Why use nukes in a war that the US was winning conventionally in 1950?
Consider the following:
a) Korea was a nation the USA was looking (after Inchon) to re-unite. How is Rhee (or for that matter MacArthur) likely to react to the idea of nuking the largest northern city in the country you are supposedly in the act of "liberating"? If the US sees NK as a Soviet puppet, they are not going to regard their civilian population as they would Japan's.
b) The USA still considered Chiang and his Nationalists in Taiwan to be the legitimate government of China. How are they going to react to the idea of nuking mainland China?
c) If Truman doesn't authorize
conventional air strikes to knock out the Yalu River bridges to stop the Chinese Incursion, how can anyone believe he'll authorize first strike nukes on anybody?
I think that would not resist the temptation to test a bomb in a combat situation.
a & b) If atomic weapons are held in the same regard as strategic bombing in WWII, they would probably be for it assuming it defeated their adversary. That is the gist of my OP. Do atomic weapons acheive the same level of moral abhorrance without having the evidence of Hiroshima and Nagasaki to point to?
c) Truman didnt want to escalate the war, which of course atomic attacks would do. Is he more willing to do so without the tangible evidence of their consequences?
I suspect the use of the atomic bomb at Hiroshima and Nagasaki saved the world from a much more destructive nuclear war in 1951, 1962, or some other date. But that is not a strong opinion of mine.
However, I am certain there is no consensus regarding their influence on ending the war with Japan.