In Ezekiel 38 & 39 the Word prophesies that Iran (Persia) along with her allies will be crushed when they attack Israel, and Shiite Iran has pledged to destroy Israel to usher in “the 12th Mahdi” who will be a counterfeit Jesus returning (the Antichrist appearing after the war predicted in Ezekiel), so keeping Iran in check is the best way to prevent (delay) the Ezekiel war, for with nuclear weapons and a reenergized military the invasion of Israel by Iran and her allies would surely come quickly.
