the Ottoman empire began systematic campaigns to kill and displace Armenians. Beginning April 1915, this was carried out through massacres, forced deportations, and displacement, which were marches under harsh conditions designed to lead to the death of the deportees. Researchers estimate the number of Armenian victims as between 1 million and 1.5 million. Deir Ezzor was the last destination of the forced displacement of Armenian convoys and the scene of killings and slaughter by the Turkish gendarmerie, where the Ottoman authorities planned to exterminate Armenians by the Arabs. But their plans failed because the people of Deir Ez-Zor regretted what happened to the Armenian men, women, and children, prompting Haj Fadel Al-Aboud who was mayor of Deir Ezzor, to help and protect them and provide them with food, housing, all livelihoods, and safety. Despite Armenians coming to the region, as part of death marches, the liberation that they achieved ultimately benefited the city; increasing population and growth rates. Historically, the city of Deir Ezzor has a special place for Armenians in Syria and Armenia and the Armenian Diaspora. The Armenian genocide Memorial Church, which was officially built in 1991, includes a museum containing some remains, collectibles and maps for memory of the martyrs who died in that area by the Ottoman Turks. The city later became a pilgrimage destination for hundreds of thousands of Armenians on 24 April each year, after being declared in 2002 by Catholicos Aram I of the Armenian Orthodox of Cilicia as a pilgrimage to the Armenians. Post World War I The first government of Haj Fadel Trouble broke out in the city of Deir al-Zour after the Ottomans left on 6 November 1918, where people began looting and stealing from each other across the area, so it was necessary to have a strong authority for protecting the city and its people and that led Al-Hassan who was the mayor to form his first government in the city and asking all tribal leaders in the villages and surrounding districts to support him and pledge allegiance to him. One of the priorities of this government was maintain the security and running the affairs of the city. This government later known as the "Haj Fadel Government". The government continued until the arrival of Sharif Nasser, the cousin of prince Faisal Bin Al-Hussein, on 1 December 1918, and Mar'i Pasha al-Mallah on 7 December 1918. British period On 11