Of the many world-shaking events that took place in 1968, high on the list was the movement for reform in Czechoslovakia to create a democratic socialist alternative to the Stalinist bureaucratic dictatorships that ruled the Soviet bloc. Chris Slee takes a look at the movement, which was dramatically ended by a Soviet Union-led invasion.
On the night of August 20/21, 1968, tanks from the armies of the Soviet Union, Poland, Hungary and Bulgaria rolled into Czechoslovakia. The aim of the invaders was to crush a movement for reform.