WWIII Nuclear Weapons
What are the conditions?
Nuclear weapons are dangerous and destructive, If WWIII does break out, America has a large stock pile of nuclear weapons that would most definitely get their point across. However, Nuclear weapons would bring serious damage to the opposing country and is that really what we, America, would want? Look at what happen to Heroshima. We are responsible for that! The damage is something i would hope our country would not want to recreate.
A condition that would make using nuclear weapons more acceptable would be if another country started to fire them at us. If we get fired at its fair game from there. The main goal is to protect the U.S. Citizens. I doubt America would be the first country to use nuclear weapons but if we give a warning in advance then it should be fair to fire back.