In communist Czechoslovakia, Soviet tanks rolled in to end Dubcek’s experiment in “socialism with a human face”. 

 

In Britain as in America, there were violent protests against the Vietnam War. In France, student clashes with the police, escalated into serious riots and even fears that the state itself was under threat. 

 

While in Brazil, there was also increasing chaos. The soldiers had originally promised that they would relinquish power in 1967 but they stayed on, with military hardliners determined to crack down on any form of opposition. 

 

On June 26th, 1968, a mass demonstration, the march of a hundred thousand, was held in Rio, organized in protest at the killing of a student shot by police. Caetano Veloso, Gilberto Gil, Chico Buarque, Edu Lobo, Paulinho Da Viola and Milton Nascimento were among the musicians who took part.