Complex sentence: During the final years of the reign of the Antichrist, a nuclear war has devastated the earth and the Antichrist and his world government find their grip on power slowly slipping away as the return of Christ draws near.
Split into simpler sentences: During the final years of the Antichrist's reign, a nuclear war has devastated the earth. The Antichrist and his world government find their grip on power slowly slipping away as Christ's return draws near.