support to Barzani hoping to frustrate the Ba'ath in Iraq. The moves would bolster Barzani and his forces, but would alienate many figures within the KDP as well as leftists sympathetic to the Kurdish cause within Iraq. Among the defectors from the KDP was Barzani's own son Ubeydullah who defected from the movement and preferred to cooperate with the regime in Baghdad. Through much of 1973, Barzani began to rebuild and reorganize the Peshmerga in anticipation of another conflict with Baghdad. On 11 March 1974, the Ba'ath government passed the autonomy law which it presented to Barzani for approval. With Kirkuk not included and his faith in the Ba'ath for a genuine autonomy low, Barzani rejected the agreement. Joining his son Ubeydullah, a number of disillusioned members of the KDP, angered with Barzani's opening towards the United States, Israel and Iran, and the perceived betrayal of KDP's socialist origins, defected to Baghdad. Renewed hostilities and defeat The 1975 Algiers Agreement was signed between Iran and Iraq in March during an OPEC conference in Algiers, mediated by Algerian President Houari Boumediène and thus ending the long-running feud between the two states over the Shatt al-Arab and other border disputes, with the US Secretary of State Henry Kissinger seeing it as necessary realpolitik to preserve stability in the Middle-East and close opportunities for the Soviet Union to exploit against Iran. The agreement stipulated that Iran end support for the peshmerga as well as no longer transporting supplies sent from other countries, which spelled the end for Barzani's rebellion as it could no longer keep the peshmerga supplied. On 23 March, just a few days after the Algiers Agreement was finalized, Barzani and nearly 100,000 followers left Iraq for Iran, ending the insurrection against Iraq, and allowing the Ba'ath Party to implement its assimilation policies towards the Kurds. Ahmad and Talabani, along with their supporters, would go to Syria and found the Patriotic Union of Kurdistan in June 1975, criticizing Barzani and KDP for what they described as "the inability of the feudalist, tribalist, bourgeois, rightist and capitulationist Kurdish leadership". Exile and death Barzani and his family were settled near the capital of Iran in Tehran in Karaj. The KDP went through a chaotic period as it attempted to reorganize itself in face of the defeat at the hands of the Ba'ath in Iraq. Barzani and his aides continued trying to get support