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
Gerrard Street, London Gerrard Street, London Gerrard Street （Chinese: 爵祿街）is a street in the West End of London, in the Chinatown area. The street was built between 1677-85 and originally named Gerard Street after the military leader Charles Gerard, 1st Earl of Macclesfield who owned the land and used it as a training area. It was developed by the physician Nicholas Barbon. By the mid-18th century, it was known more for its coffee houses and taverns than as a place of residence. John Dryden (1631–1700) lived for a while at 43 Gerrard Street, which is commemorated by a blue plaque. Another plaque, on