With the aim of besieging Aylul Revolution and ending the Kurdish liberation struggle in Iraqi Kurdistan, on March 6, 1975, through the mediation of the Algerian government, an agreement was signed between the government of Iraq and the Shah of Iran, which was later known as the Algiers Agreement, and besieging the Kurdistan revolution and weakening its liberation movement were among its most primary points. According to that agreement, the Ba'ath regime gave up half of the Shatt al-Arab to Iran, in return for Tehran providing full assistance to the Ba'ath regime in besieging the Kurdistan revolution led by Mustafa Barzani, just as the text of the agreement reaffirmed the adoption of security measures for that purpose. The Algiers Agreement is considered one of the regional and international plots against the Kurdistan liberation movement.

Reasons:

On March 26, 1974, after several rounds of negotiations between the Iraqi government and the leadership of the Aylul Revolution had stalled, the ruling Ba'ath regime once again declared war against the Kurds, which had been halted for several years due to the March 11, 1970 agreement. The government dissolved all border guard battalions (Haras al-Hudud) and fighting resumed between the revolution's Peshmerga and the regime's army. In that month, the army's artillery began shelling the areas under Peshmerga control on the borders of Iran.

From the middle of April, government attacks on areas under the revolution's control began. On April 15, 1974, the regime's army set off from Mosul towards Zakho. The Iraqi army's goal was to capture the Zakho base. After a fierce battle on May 8, the government was able to achieve its goal and take control of Zakho. On April 24, 1974, the Iraqi Air Force attacked the city of Qaladiza and bombed the center of the University of Sulaymaniyah. Two days later, on April 26, the city of Halabja and its surroundings were bombed by the regime's army aircraft. Later, on April 29, the Galala bridge was bombed.

With the arrival of the summer season, the regime's army attacks began again. On September 8, 1974, the regime's army forces went to Galala, Rawandiz, and Haji Omaran with tanks and aircraft, and on September 19, they attacked the main road connecting Rawandiz to Bekhal with their tanks and armored vehicles via the road between Korek Mountain and Bekhal. As a result, the Peshmerga forces were forced to retreat towards the areas of Zozk, Handren, the Omar Agha gorge, and the Akoyan valley. After these attacks by the regime's army, the only strategic places that remained in the hands of the Peshmerga were the Handren and Zozk mountains, which overlooked the Hamilton Road.

 From the beginning of the resumption of the war until September 1974, the Iraqi government was able to achieve major victories over the Kurds, take control of most of the land in the north, and push the Peshmerga back to the Iranian border. However, at the beginning of September of the same year, the balance of the war changed again in favor of the Kurds. The Peshmerga forces were able, with the help of the country of Iran, to stop the advances of the Iraqi army and even force them to retreat in many places and return them to their own control.

The Iraqi Ba'ath government intended to end the Aylul Revolution once and for all before the arrival of the autumn and winter seasons, but after the defeats they suffered, it was announced by the government that the war would continue for an indefinite period. With the continuation of the war, the losses the government was incurring increased many times over; the government was even forced to use its own financial and human reserves. Economically, the war had placed a heavy burden on the state, estimated at three billion dollars. From then on, the Ba'ath regime had to look for another solution to solve the Kurdish problem. Most Arab leaders suggested to Saddam Hussein that he reach an agreement with Iran and, in exchange for fulfilling the long-standing dream of the Shah of Iran, convince him to stop helping the Kurds.

Between March 4 and 6, 1975, the OPEC summit was held in Algiers, the capital of Algeria, with the attendance of representatives from thirteen member countries of the organization. In this summit, both Mohammad Reza Shah Pahlavi of Iran and Saddam Hussein, Deputy Prime Minister of the Iraqi Arab Republic, participated. At a time when the problems between the two countries of Iran and Iraq had reached their peak during that period, at the suggestion of Houari Boumédiène, the President of Algeria, on the sidelines of the two-day conference, both Mohammad Reza Shah and Saddam Hussein met twice in the presence of Houari Boumédiène. The second time was on the evening of March 5 at the Algerian Presidential Palace. Boumédiène first met with the Shah of Iran alone to prepare the ground for the Shah's meeting with Saddam Hussein, and in this, he was successful; the Shah and Saddam Hussein sat face-to-face with each other. The Shah of Iran was willing to stop helping the Kurds in exchange for gaining the lands of Shatt al-Arab and southern Iran. The result of the agreement was that Iran would help Iraq in besieging the Kurdish revolution, protect its borders with Iraq, and no longer interfere in the internal affairs of Iraq, in exchange for Iraq relinquishing some lands of (Shatt al-Arab) to Iran and returning the water borders of both countries to the 1913 Constantinople Agreement between Iran and the Ottoman Empire and activating the Thalweg water line as the water border of (Shatt al-Arab) between the two states.

The Iraqi Ba'ath regime, for its part, considered the assistance of the Iranian government to be the reason for the success of the Aylul Revolution He knows why, in exchange for stopping this aid, he was prepared to fulfill the long-held dream of the Shah of Iran, which consisted of returning the lands of (Shatt al-Arab) to Iranian territory and redrawing the water borders between the two countries. The Iranian government had begun its aid to the revolution in southern Kurdistan in a sporadic manner since the Year 1962, which gradually, upon its own suggestion, had also included aid from Israel and the United States of America. This aid reached its peak by the Year 1975 and pushed the Kurdish revolution in southern Kurdistan forward to the brink of toppling the Ba'ath regime.

Saddam Hussein, the then Deputy Prime Minister of Iraq, after the defeats of the autumn of 1974, felt that his country had no choice left but to bow to the demands of the Shah of Iran. The Iranian government, after reaping the fruits of many years of helping the Kurdish revolution in southern Kurdistan, which it had been supporting with weapons until that time, agreed to place its land and army at the service of the Iraqi government to strike the Kurdish revolution in southern Kurdistan, led by General Mustafa Barzani. This was one of the secret clauses of the agreement between the two countries, which was announced on March 18 by General Nassiri after his arrival in Haji Omaran to General Mustafa Barzani . With this, no horizon remained for the revolution's leadership to continue the revolution, so it was decided by the revolution's leadership to stop the revolution for a temporary period and wait for another suitable opportunity to restart it.

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