In 1963, after the Ramadan Revolution, the Ba'ath Party government led by Ahmad Hassan al-Bakr, launched a campaign against the Kurdish rebellion, that had been seeking independence from Iraq. The Ba'ath led government collapsed after the November 1963 coup led by Abdul Salam Arif. Relations between the new government and the Kurds had not been agreed. In 1968, another revolution occurred with the Ba'ath Party and the Iraqi government, called the 17 July Revolution. Tensions between the new government and the Kurds increased, with the Iraqi Armed Forces engaging in military action against Kurdish separatists. The actions of Kurdish rebels caused massive economic disruption. On 11 March 1970, a treaty was signed between the Vice-Chairman of the Revolutionary Command Council (Iraq), Saddam Hussein, called the "March Manifesto" and the leader of the Kurdish rebellion, Mustafa al-Barzani, in Tikrit, to end the conflict. Under the agreement, militias were to be merged into the Iraqi Army, cut all ties with Iran and the rebellion would come to an end. In return, the Iraqi government promised the Kurds autonomy, with Kurdish representatives to be included in the Iraqi government. The government had previously encouraged the "Arabization" of the oil-rich Kurdish regions. By 1974, there remained unresolved problems between the government and the Kurds about the oil resources of the Kurdish regions of Iraq. Kurdish ministers resigned from the government, Kurdish employees withdrew, and Kurdish police and soldiers no longer cooperated with the government. The Iraqi government insisted that the Kurds were bound by the agreement, but the Kurds believed that it was the government who had breached the accord. On 11 March 1974, the agreement was incorporated into the Iraqi constitution. Fighting again broke out between the Iraqi army and Kurdish forces, with Iran supporting the Kurds.