Mark 5:1-20; Ephesians 6:12. Satan and his demons are real and ultimately responsible for the condition of our world today. We are in a war. The battle is for the heart and soul of our nation, and all humankind. This battle is not fought with tanks and fighter jets for it is not a battle of flesh and blood but of “principalities and powers”. In Mark chapter five Jesus confronts the problem of demons and demon possession head on. It’s a case study of the power of evil in the life of one who has completely relinquished control to Satan and his demons.