Reddit reviews Bombs Away: The Hot War

The other answers here have been sufficient, it was the last period a war like that could have been survivable in some recognizable shape.

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I will link you this though if you want to read more about it : Bombs Away

Nuclear winter would not occur from a few nuclear detonations; it would take a large number on a world-wide scale to do this.

The justification for usage of a nuclear weapon could likely be the same as what we used in World War 2 Japan: It would save American troop lives, and it would save Japanese lives. The argument has been made that the 250,000 lives lost at Hiroshima and Nagasaki were less than what would have been lost if America had been forced to make a land invasion of Japan.

Could that justification be used today? Could detonating a nuclear bomb on Pyongyang cause North Korea to capitulate immediately, avoiding the necessity of American troops invading? I'm sure someone is making that calculation somewhere, and I'm sure there is a ratio of American lives lost to Foreign lives lost that has been computed.

If you're interested in a fiction series that explores the concept of the aggressive usage of nuclear weapons, I recommend Harry Turtledove's 'The Hot War' series. This series explores what if MacArthur had been granted permission to use atomic bombs during the Korean War.

Depends on when. If you're interested, I'd recommend "The Hot War" but Harry Turtledove:
https://www.amazon.com/Bombs-Away-Hot-Harry-Turtledove/dp/0553390724

The POD is MacArthur uses nukes in the Korean War.