International volunteers fought on the side of the Republicans in the Spanish Civil War. The fight was because of the economic difficulties at that time. In the 1920s Spain came under the leadership of dictator Miguel Primo de Rivera.
Answer:The main antagonists were the Nationalists under Gen. Francisco Franco and the Republicans under Francisco Largo Caballero and, later, Juan Negrín. The Nationalists were supported by Mussolini's Italy and Nazi Germany.
