Comintern was created on 1919-03-02.
Cominform ended in 1956.
Georgi Dimitrov was a chairman in the Comintern.
Founding Congress of the Comintern was created in 1919.
For e2020 it would be to spread communism in other countries the goal was to encourage Communist parties in other countries to overthrow their governments by legal or illegal means and to establish Soviet-style regimes.
The anti-comintern pact was between Nazi Germany and the Empire of Japan.
Novmber 25, 1936
The Anti-Comintern Pack was made between Germany and Japan against Communism in 1936. In 1937, Italy joined the pact too. Later all Hitler's alliances joined it. (Comintern was the Communist International, i. e. an organisation of communist parties from all over Europe, founded by Lenin in 1919. in 1920 it had member parties from 37 countries.)
comintern
Comintern, or communist international
Anti-Comintern Pact
If this question concerns why the USSR collapsed in '91, its because the Soviets went (or were going) bankrupt.