In which year Azerbaijan was annexed by the Soviet Union?

It was December 1922, when Azerbaijan, as part of the South Caucasus Federation, joined the Soviet Union

On December 5, 1936, Azerbaijan was upgraded to a member state and became a member of the Soviet Union. Soviet Union

In December 1922, the Tenth All-Russian Congress of Soviets was held. Plenipotentiary representatives of the four Soviet Socialist Republics, including the Russian Federation, Ukraine, Belarus and the South Caucasus Federation, were established in the Union. The treaty was signed and the Union of Soviet Socialist Republics and the Soviet Union was formally established. (The federation formed by the three countries of Georgia, Armenia and Azerbaijan in the South Caucasus was forced to join by the Soviet government at that time. Its simple and crude approach hurt the self-esteem of the ethnic minorities, so it was later separated.)

The New Constitution of the Soviet Union in 1936 The conditions for joining the Soviet Union were specifically stipulated. There are three conditions: 1. The Republic of China must be located in a border area and should have the same borders as its neighbors of the Soviet Union; 2. The nation that uses its own name as the name of the Republic of China should account for more than half of the population of the Republic of China; 3. The total population of the Republic of China should be more than one million.

According to the provisions of the new constitution, the Kazakh Autonomous Republic of Kazakhstan and the Kyrgyz Autonomous Republic of Russia, as well as Georgia, Armenia and Azerbaijan in the South Caucasus Federation are all eligible to join the Union. country conditions. The above-mentioned five countries became members of the Soviet Union on December 5, 1936, when the new constitution came into effect. The federal establishment of the South Caucasus was abolished. The number of member states of the Soviet Union increased from 7 to 11.