The Supreme Council of Azerbaijan adopts a declaration of independence from the Soviet Union.

Azerbaijan declared its independence from the Soviet Union on October 18, 1991, becoming one of the fifteen republics to break away during the collapse of the communist superpower. Azerbaijan had previously enjoyed a brief period of independence between 1918 and 1920, when it established the Azerbaijan Democratic Republic, the first secular parliamentary republic in the Muslim world. However, Soviet forces invaded in April 1920, incorporating the country into the Soviet system. For the next seven decades, Azerbaijan remained under communist rule, although nationalist sentiment and demands for greater autonomy gradually increased. During the late 1980s, Soviet leader Mikhail Gorbachev’s policies of glasnost and perestroika encouraged political activism throughout the Soviet Union, including Azerbaijan, where growing tensions with neighbouring Armenia over the disputed Nagorno-Karabakh region intensified demands for independence.

The movement towards independence accelerated dramatically in January 1990, when Soviet troops entered the Azerbaijani capital, Baku, to suppress political unrest and the growing nationalist movement. The military intervention, remembered as Black January, resulted in the deaths of more than 130 civilians and further strengthened anti-Soviet sentiment. Following the failed coup against Gorbachev in Moscow in August 1991, Azerbaijan’s Supreme Soviet adopted a declaration restoring the country’s independence on August 30. On October 18, 1991, the Azerbaijani parliament formally adopted the Constitutional Act on State Independence, establishing Azerbaijan as a sovereign nation. A nationwide referendum held on December 29, 1991, overwhelmingly endorsed independence, just days after the Soviet Union had officially ceased to exist. Azerbaijan subsequently gained international recognition and joined the United Nations on March 2, 1992.

Independence brought enormous opportunities but also considerable challenges for Azerbaijan. The newly established republic faced political instability, severe economic difficulties and an escalating armed conflict with Armenia over Nagorno-Karabakh, which developed into a full-scale war and displaced hundreds of thousands of people. Following several changes in leadership, Heydar Aliyev came to power in 1993 and sought to stabilise the country while developing its substantial oil and natural gas resources. Azerbaijan’s energy wealth eventually helped transform its economy, particularly following major international investment in Caspian Sea oil production. October 18 remains an important national anniversary, celebrated as the Day of Restoration of Independence, commemorating the country’s emergence from Soviet rule and the restoration of the sovereignty it had briefly enjoyed in the early twentieth century.