On March 11, 1974, the Iraqi government gave Barzani 15 days to accept a new autonomy law, which "fell far short of what the regime had promised the Kurds in 1970, including long-standing demands like a proportional share of oil revenue and the inclusion of the oil-rich and culturally significant city of Kirkuk into the autonomous region" and "gave the regime a veto over any Kurdish legislation."[112] Barzani allowed the deadline to lapse, triggering the outbreak of the Second Iraqi–Kurdish War in April.[113] Although the CIA had stockpiled "900,000 pounds of non-attributable small arms and ammunition" to prepare for this contingency, the Kurds were in a weak position due to their lack of anti-aircraft and anti-tank weapons. Moreover, Soviet advisers contributed to a change in Iraq's tactics that decisively altered the trajectory of the war, allowing the Iraqi army to finally achieve steady gains against the Kurds where it had failed in the past.[114] To prevent a collapse of the Kurdish resistance, Kissinger negotiated a deal with Israel to provide the Kurds with $28 million in heavy weaponry, but all assistance came to a sudden end shortly after the Shah and Saddam embraced one another at a press conference in Algiers on March 6, 1975: Saddam had agreed to a concession on the border of the Shatt al-Arab waterway in return for an end to "all subversive infiltration from either side."[115][116] The increasingly overt Iranian involvement necessary to stave off a Kurdish defeat—including the presence of Iranian soldiers dressed in Kurdish uniforms, who participated in combat for as long as 10 days at a time, thus raising the possibility that further escalation might lead to "open war" between Iran and Iraq—combined with assurances from Arab leaders including Sadat, King Hussein, and Algeria's Houari Boumédiène that "Saddam Hussein was ready to pull Iraq out of [the] Soviet orbit if Iran would take away the [Kurdish revolt] which was forcing them into the arms of the Soviets"—also helped convince the Shah that an accommodation with Iraq was necessary and desirable.[117][118] In the aftermath, over 100,000 Kurds fled to Iran, while the Iraqi government brutally consolidated its control over Iraqi Kurdistan—destroying as many as 1,400 villages by 1978, imprisoning 600,000 Kurds in resettlement camps, and ultimately waging a campaign of genocide against the Kurds in 1988.[119]