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
London with the Lights On London with the Lights On London with the Lights On is the debut studio album by English girl group Stooshe. It was originally set for release on 25 June 2012 under the name of "Swings and Roundabouts", but was held back twice; under the new self-titled name and was name changed and released on 27 May 2013. "Love Me" was released on 4 March 2012 as the album's lead single, peaking at number 5 on the UK Singles Chart. "Black Heart" was released as the second single on 15 June 2012 and became the group's highest charting single to date,