Every soldier thinks something of the moral aspects of what he is doing. But all war is immoral and if you let that bother you, you're not a good soldier.
We should bomb Vietnam back into the stone age.
That was the era when we might have destroyed Russia completely and not even skinned our elbows doing it.
My solution to the problem would be to tell the North Vietnamese Communists frankly that they've got to drawn in their horns and stop their aggression or we're going to bomb them into the stone age.
Sometime in the future - 25, 50, 75 years hence - what will the situation be like then? By that time the Chinese will have the capability of delivery too.