Why God's War On Terror?
When God destroyed the world before in Ancient History it was because the world was filled with violence terrorism.
Violence filled the world.
It is becoming like that again and will get so bad that God's War On Terror will have to come to earth again.
Or no flesh shall be saved!

The earth also was corrupt before God, and the earth was filled with violence.
Genesis 6:11

And God said unto Noah, The end of all flesh is come before me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth.
Genesis 6:13

War, violence, terrorism.