The Pusztavac Peace Festival

It started as a peace festival, but ended in a mass dispersal. In 1984, concerts in Pusztavac were stopped with tear gas and water cannon after a crowd of tens of thousands attacked the police with beer bottles. The festival, which became known as the Pusztavac Battle, was originally intended as a celebration of socialist peace, but due to poor organization, it caused a generational shock for young rock music fans. Several people were convicted for the mishap, and the secret service monitored those who spread news and photos about the event for years.