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
By a Thread: Live in London 2011 one of the first four Devin Townsend Project albums performed in their entirety. The "Ki", "Addicted", and "Deconstruction" concerts were held at the University of London Union, and the "Ghost" concert was held at the Union Chapel. The box set contains four DVDs, each featuring a concert, and four CDs containing the audio from the concerts. A fifth CD contains the audio of the encores played during the concerts. The box set is limited to 5,000 copies worldwide. DVD 1 Extras: DVD 2 Extras: DVD 3 Extras: DVD 4 Extras: By a Thread: Live in London 2011 By a Thread