A five-member executive committee (the Pentarchy of 1933) was chosen to head a provisional government.[21] They were ousted by a student-led organization, the Student Directory, which appointed Ramon Grau San Martin as provisional president and passed various reforms during the ensuing One Hundred Days Government.[21] Grau resigned in 1934, after which Batista dominated Cuban politics for the next 25 years, at first through a series of puppet-presidents.[20] The period from 1933 to 1937 was a time of "virtually unremitting social and political warfare".[22]