In September 1933, the Sergeants' Revolt, led by Sergeant Fulgencio Batista, overthrew Céspedes. A five-member executive committee (the Pentarchy of 1933) was chosen to head a provisional government. Ramón Grau San Martín was then appointed as provisional president.  Grau resigned in 1934, leaving the way clear for Batista, who dominated Cuban politics for the next 25 years, at first through a series of puppet-presidents. The period from 1933 to 1937 was a time of "virtually unremitting social and political warfare". On balance, during the period 1933–1940 Cuba suffered from fragile politic structures, reflected in the fact that it saw three different presidents in two years (1935–1936), and in the militaristic and repressive policies of Batista as Head of the Army.