The invisible spiritual warfare, between God and Satan, in which the forces of Satan are warring against the forces of God (Michael, an archangel, and the elect angelic forces). It was ignited by the prehistoric revolt of Satan (Ezekiel 28:11-19) who also carried off in deception one-third of the angelic creation (Revelation 12:4), whereupon Satan apparently challenged God's decision to cast the fallen angelic creation into the Lake of Fire (Matthew 25:41). Considering that Satan is not in fact in the Lake of Fire, prepared for that purpose, one may conclude that God postponed Satan's punishment (Matthew 25:41; Revelation 20:10). The Angelic Conflict thus continues as spiritual warfare in human history (Daniel 10:13; Ephesians 6:10-18). The Church Age is the intensified stage of this Angelic Conflict (1 Peter 5:7-9). This conflict has real impact on Christians, and thus, they are to prepare themselves for effective spiritual warfare (Ephesians 6:11). The study of this conflict provides the answers to the age long questions regarding "Why Man?"; "Why Sin?"; "Why Suffering?"; and "Why the Church?"