Revelation 12: 7-9: "And war broke out in heaven: Michael and his angels fought with the dragon; and the dragon and his angels fought, but they did not prevail, nor was a place found for them in heaven any longer. So the great dragon was cast out, that serpent of old, called the Devil and Satan, who deceives the whole world; he was cast to the earth, and his angels were cast out with him."
What that means for us is our world, the earth, becomes Satan's base of operations along with his demons and his anger is being vented toward the remaining inhabitants of the earth. Accept Jesus Christ came in the flesh and receive him in your heart. You are in the End Times battle whether you know it or not.