The following is an article by the Trotskyist Spartacist League on why they defended the Soviet Union, and the actions they took during the terminal crises of 1989-92.
Why We Fought to Defend the USSR
Obviously, the ex-Soviet republics are now a living hell. Capitalism has meant misery and impoverishment for hundreds of millions, and has hit women especially hard. All across east Europe, for example, abortion used to be either free and on demand, or at a nominal cost. The reactionary regimes from Berlin to Warsaw to Moscow that have replaced the old Stalinist regimes have made abortion either outright illegal (Poland), or prohibitively expensive.
Those who cannot defend past gains will never conquer new ones. The fake left that failed miserably in defence of the USSR will never lead the workers to any gains, much less a revolution.
This article might be a good introduction for people to genuine Marxism-leninism. IE Trotskyism
