 Complete the following phrase:  Following the politics of glasnost, initiated by Mikhail Gorbachev, civil unrest and ethnic strife grew in various regions of the Soviet Union, including Nagorno-Karabakh, an autonomous region of the Azerbaijan SSR. The disturbances in Azerbaijan, in response to Moscows indifference to an already heated conflict, resulted in calls for independence and secession, which culminated in the Black January events in Baku. Later in 1990, the Supreme Council of the Azerbaijan SSR dropped the words Soviet Socialist from the title, adopted the Declaration of Sovereignty of the Azerbaijan Republic and restored the flag of the Azerbaijan Democratic Republic as the state flag. As a consequence of the 