The 19th of April Movement (in Spanish: Movimiento 19 de Abril) or M-19, was a Colombian guerrilla movement. After its demobilization it became a political party, the M-19 Democratic Alliance (Alianza Democrática M-19), or AD/M-19. The M-19 traced its origins to the allegedly fraudulent presidential elections of 19 April 1970. In those elections, the National Popular Alliance (ANAPO) of former military dictator Gustavo Rojas Pinilla was denied an electoral victory.