The methods of annihilation as are invented by the human brain such as the atomic bombs etc are also Her creations but the deluded asuras, who are caused to act by the modes of prakrti the material nature, do think themselves as the originator or inventor of such weapons. In that way a constant struggle is going on between the asuras and the prakrti and the asuras are thus being punished in different ways which the asuras cannot overcome by any method except by full surrender unto the almighty God.
In the Bhagavad-gita the last instruction is to surrender fully unto Him the author of the Bhagavad-gita but unfortunate men of demonic mentality misunderstood the teachings of Bhagavad-gita as a method of sophistry and therefore the same Personality of Godhead Sri Krishna in the garb of a transcendental devotee preach the same techniques of Bhagavad-gita i.e. full surrender unto the almighty God or His different potencies in a demonstrative way.