 After her release she helped to found the 26th of July Movement, joining the guerrilla forces led by Fidel Castro and Che Guevara in the Sierra Maestra mountains.Santamaría was in Miami, Florida for the planning of the 26th of July Movement.The speech History Will Absolve Me was converted into a written manifesto by Fidel Castro using lemon juice to write between the lines of letters during his imprisonment after the assault on the Moncada Barracks.