On May 28, 1918, immediately after the declaration of state independence, a friendship treaty was signed between the government of Azerbaijan and the Ottoman state. Article 4 of that agreement, signed in Batum on June 4, 1918, stipulated that military assistance would be provided to the Azerbaijan Democratic Republic if necessary. Taking advantage of this opportunity in the complex military and political situation, the government of the Republic officially appealed to the Ottoman state for military assistance. Based on that request, a limited number of Ottoman military forces were sent to Azerbaijan. With these forces, the Caucasian Islamic Army was created on the basis of the existing national military forces of Azerbaijan. The peak of the struggle of the Caucasian Islamic Army for the territorial integrity of Azerbaijan was the liberation of Baku from the Armenian-Bolshevik and foreign forces on September 15, 1918. In order to study the history of the liberation of Baku from foreign forces, there is also interesting information on the pages of "Azerbaijan" and "Azerbaidjan" newspapers, which are the official press bodies of the government of Azerbaijan. The current article is devoted to the analysis of the information published on the "Azerbaijan" and "Azerbaidjan" pages about the liberation of Baku by the Caucasian Islamic Army.