We have enough nuclear weapons to kill off humanity. They have not been used because of fear of retaliation, the number has been reduced because of costs. But the US with it's largest conventional military would benefit from a removal of all nuclear weapons.
We'll see if Russia uses a tactical nuke when Ukraine enters Crimea.
Biological weapons have been killed because they are hard to be used operationally. You don't want to kill civilians, this creates more resistance (shown in WW2 and Iraq for example), also if you conquer a country you need people to run it. Biological weapons are not that useful.
We'll see if Russia uses a tactical nuke when Ukraine enters Crimea.
Biological weapons have been killed because they are hard to be used operationally. You don't want to kill civilians, this creates more resistance (shown in WW2 and Iraq for example), also if you conquer a country you need people to run it. Biological weapons are not that useful.