For two years prior to this campaign there was a violent struggle to oust dictator Gerardo Machado: running gun battles, bombings, political assassinations. The leading violent group agreed to a ceasefire in July 1933 to allow for mediation, but smaller groups continued with some attacks.
Following the 1933 general strike, which resulted in the overthrow of President Machado, Ramon Grau San Martin was made the head of the Cuban government. His administration was given legitimacy because of support by DEU minister of government Antonio Guiteras and chief of the army Fulgencio Batista. On January 15