 They were followed by former members of the overthrown government of the Democratic Republic of Azerbaijan and their families, as well as many upper-class Azerbaijanis, who fled to Turkey in fear of persecution by the Bolsheviks and settled primarily in Istanbul, Bursa and Ankara.Together with other political immigrants from the Caucasus and led by members of the deposed democratic government of Azerbaijan such as Rasulzadeh, Khasmammadov and Sultanov, some of them engaged in anti-Soviet political propaganda and activities in Turkey in an attempt to restore the independence of the Bolshevik-occupied Caucasus states.The signing of Soviet-Turkish non-aggression pacts in 1925 and 1935 created obstacles in continuing this activity in the form of arrests and bans on the publishing of anti-Soviet periodicals.