sentences:  Some historians go so far as to argue that the Pětka was the de facto government of Czechoslovakia, in that it had the power to overthrow any cabinet.But whatever the true dimensions of its power, it is certain that the non-elected, rather shadowy Pětka wielded a great deal of power during the interwar period.In September 1921, it seems to have been the Pětka that was responsible for deciding to install Edvard Beneš as the prime minister.