The bitter days of Iraqi ballistic missile attack to Tehran

Another factor that contributed to the outbreak of the war was the ideological rivalry between the Islamic Republic of Iran and the Baathist regime of Iraq. Iran, which had undergone a revolution in 1979 that resulted in the establishment of an Islamic republic, sought to export its revolutionary ideology to other countries in the region, including Iraq. The Baathist regime, on the other hand, viewed the Iranian revolution as a threat to its own survival and sought to contain Iran's influence in the region. The war also had its roots in the long-standing religious rivalry between Iran, which is predominantly Shia Muslim, and Iraq, which is predominantly Sunni Muslim. The Iranian revolution had inspired Shia Muslims in Iraq to rise up against the Sunni-dominated regime, leading to fears in Baghdad that Iran would seek to undermine the stability of Iraq and support the Shia insurgency.