The Soviet Union (USSR) disintegrated into 15 independent states in 1991:

• Armenia
• Azerbaijan
• Belarus
• Estonia
• Georgia
• Kazakhstan
• Kyrgyzstan
• Latvia
• Lithuania
• Moldova
• Russia
• Tajikistan
• Turkmenistan
• Ukraine
• Uzbekistan.

The dissolution of the USSR was a gradual process that began in 1990 and ended on December 31, 1991.