Bulgaria–United States relations to work. Bulgaria became a member of the Warsaw Pact on May 14, 1955. Though no Soviet troops were stationed on Bulgarian soil, in 1968, Zhivkov sent a Bulgarian division to join Polish, Hungarian and Soviet troops to crush a popular uprising in Prague. In 1978, the Bulgarian secret police were implicated in the assassination in London of Georgi Markov, a Bulgarian dissident who was a correspondent for the BBC World Service, Deutsche Welle radio and the U.S. sponsored Radio Free Europe. Markov was assassinated with a poisoned umbrella on September 7, Zhivkov's birthday. The rise of democratic movements across
The Umbrella Coup The Umbrella Coup The Umbrella Coup () is a 1980 French comedy film directed by Gérard Oury, starring Pierre Richard, Gordon Mitchell and Gert Fröbe. The creation of the film was inspired by several assassinations of Bulgarian dissidents where the so-called Bulgarian umbrella was used as a weapon. The working title of the film was "Le Coup du Parapluie Bulgare". The unsuccessful actor Grégoire Lecomte is heading for a casting but then he takes a wrong turn. While he thinks he talks to casting director who wants an actor to play a henchman, he actually talks to a mafia don