"So, why did the USSR collapse? Because Gorbachev unleashed a process he couldn't control and never understood. Because hardliners tried to stop him. And because liberals decided it suited their purposes to smash the union and have an independent Russia. In short, almost everyone involved in politics at the time played a part. Pointing the finger at any individual group seems rather pointless. Ultimately, though, if you really want to find someone to blame, the true culprits were the Bolsheviks who built the Soviet system. The communist model was fatally flawed from the start. With hindsight, it seems clear that, sooner or later, it was bound to come crashing down."