After all the fighting and killing that took place between the two Barzani and Iranian forces, on April 5, 1947, all the Iranian forces, which at that time had been able to regain control of most of the areas under the authority of the Barzanis, took advantage of the Mangur gunmen and launched a widespread attack from several sides on the Barzanis. In one of the battlefronts, which was on the heights of Gird Kashan, a battle took place between the Iranian army, which was armed with 105mm and 75mm artillery and was also supported from the air, and 150 Barzani Peshmerga whose commander was Ahmed Margawari. In that battle, after a heavy struggle, those heights fell into the hands of the Iranian army, and in this way, the Oshnavieh region was completely controlled by the Iranian army.
At that time, tanks and a detachment of the Lorestan cavalry force were the first group to reach Oshnavieh, and the Barzanis retreated to the Galas Valley and from there to Gadar. However, before returning, on April 8, 1947, and simultaneously with their retreat, the Barzanis were able to shoot down one of the Iranian Air Force planes that was heavily bombing their force; one of the pilots was killed and the other saved himself by parachute. Also, to reduce the burden on their shoulders, they released the prisoners they had captured in previous battles, who consisted of 18 sergeants and corporals and the rest of the officers who had been captured, except for Second Lieutenant Hamid Jahanbani, through Sayyid Abdullah Gailani, and returned them to the Iranian army. Lieutenant Jahanbani was also released on April 10, 1947. At the time when the Barzanis were retreating to the border between Iran and Iraq, Sheikh Ahmed Barzani wrote a letter to General Humayuni, in which he discussed the artillery that was in the hands of the Barzanis and also mentioned the release of Lieutenant Jahanbani: ((It was your forces that attacked us, and no aggression was committed by us. Regarding the artillery, you recovered one cannon with all its equipment in Oshnavieh, and another cannon remained on Iranian soil; you can find it through Sheikh Abdullah and find its location and take it back, because we did not have pack animals to pull that cannon, so we did not take it with us. Your planes kill about twenty of our women and children every day. Regarding the prisoners, we handed over all the officers and the rest to Sheikh Abdullah. We have handed over Jahanbani to Sayyid Kamal)). Sheikh Ahmed Barzani also asked the Iranians in his letter to: ((Have their planes stop bombing women and children, which is an inhumane act and contrary to all international laws)). In this way, the Barzanis began their retreat to Iraqi territory in an orderly manner.
Sources:1- Sepahbod Mohammad Kazemi, Colonel 2 Staff Manouchehr Alborz, History of the Fifty Years of the Imperial Iranian Ground Force, Tehran, 2535.
2- Najafqoli Pessian, From Bloody Mahabad to the Banks of the Aras, (Tehran, Sahami Chap Company, 1328).
3- Hossein Ali Razmara, Geographical Dictionary of Iran (Villages) Province 3 and 4 Azerbaijan, Tehran, Army Staff Geographical Department Publications, 1330.
4- Abbas Ghazali Mirkhani, From Mahabad to Gadar, (Erbil, Manara Printing House, Second Edition, 2007).
5- Ali Asghar Ehsani, Our Memories of the Khorasan Officers' Uprising, Tehran, Nashr-e Elm, 1378.
6- Dr. Afrasiab Hawrami, Relations between Kurdistan and Azerbaijan and the Collapse of Both in 1946 (in Documents and Sources), Sulaymaniyah, Sardam Printing and Publishing House, 2008.