"In September 1980, Iraq went to war with Iran. Saddam's ostensible aim was to capture the Shatt al-Arab waterway that separates the two countries, but in reality he wanted to secure the Iranian oilfields and strike a blow against Iran’s Islamic revolution which threatened to seduce his own Shia minority. After some initial successes, the Iraqi army was pushed back. Saddam’s forces seemed on the verge of collapse until the US provided Iraq with satellite intelligence on Iranian troop manoeuvres, allowing Saddam to deploy his aircraft with greater effect."