The US was the one country in the world that refused to sign a “no first strike” agreement for nuclear weapons, because back in the Soviet Union days our nuclear deterrent was what we believed kept them from overrunning Western Europe with massively superior conventional forces.
I believe we should unilaterally agree to refrain from nuclear first strikes against any country that has not developed nuclear weapons. This implicitly suggests that we will consider first strikes against any country that has developed them.
The bonus: It gives an automatic disincentive for every country considering a nuclear program. Currently, countries like Iran or North Korea believe that holding a nuclear stockpile will help protect them from belligerent Americans. I say we make the threat of belligerence much more severe if they have nukes than if they don’t.
Seems obvious, doesn’t it?