Analysis of information sources in references of the Wikipedia article "Mountainous Republic of the Northern Caucasus" in English language version.
On 11 May 1918 the independence of the Republic of the North Caucasus was declared. The government sought international recognition and when on 8 June 1918 a Treaty of Friendship was signed with Turkey this implied recognition of the new Republic.
The government of Kotsev was not able to defend its territory, and in May 1919 the White Army of Denikin conquered the territory of the Mountain Republic in Chechnya and Daghestan, and the Mountain Republic ceased to exist.
In 1919 Sheikh Uzun Haji, Pshemakho Kotsev and Sheikh Akushinskii called for a fight against the White or Volunteer Army of Denikin and in September 1919 the Emirate of the North Caucasus was proclaimed, comprising the North of Daghestan, Chechnya and part of Ingushetia. To secularist nationalists the Emirate was seen as the successor of the Mountain Republic.
In August 1920 however, the Bolshevik army attacked Chechnya from the north, and the leaders of the emirate called for a jihad, asking the grandson of Imam Shamil, Sait Shamil, to lead the fight. He was one of the two survivors of this fight and later fled to Turkey.
It took the Russians until 1925 to arrest and kill Gotsinskii. The uprising was inter alia successful because the Caucasians obeyed the requests of the Sufi clerics who organized the revolt. In April 1921 a Mountain ASSR, of which Chechen territory was part, was established within the RSFSR. On 20 January 1921 the Daghestan ASSR was declared. On 30 November 1922 a Chechen Autonomous Oblast was created.