A group led by Robert Merriman first saw action at the Jarama Valley in this war, that Abraham Lincoln Brigade was one of several International Brigades organized by Comintern to fight the Falange.  
Despite having knowledge of the exact start time of this event, 5 AM on July 19, a police chief decided to lie about it rather than distribute arms. Felix Morrow wrote the first American study of one part of it, and Hugh Thomas and Philip Knightly argued against George Steer's interpretation of another part of it. A group led by Robert Merriman first saw action at the Jarama Valley in this war, that Abraham Lincoln Brigade was one of several International Brigades organized by Comintern to fight the Falange.  For 10 points, name this 1936-1939 war in which the Popular Front government was overthrown by Franco, which included the bombing of Guernica.
Despite having knowledge of the exact start time of this event, 5 AM on July 19, a police chief decided to lie about it rather than distribute arms.
{Spanish Civil War} (prompt on “Spanish Revolt” or “Spanish Revolution”)