Other countries entered the on-going civil war and dividedly supported the republican or the nationalists. The German intervention triggered World War II when it supported the Nationalists, while France and Britain supported the Republicans. The military interventions led the countries to war.
Germany provided heavy military training and tactics to the Nationalists that later was formed as the Condor Legion, which led the Nationalists military. The Condor Legion experienced successive victories because of their rigorous training, however, in the end, they were defeated by Britain's army.
Esperanza grows and matures in several ways. At the beginning of the novel, she is a wealthy girl without a trouble in the world and is largely ignorant to the problems of people around her. She is forced to leave behind everything she knows and overnight, goes from a carefree young girl to a desperate migrant worker.
The KKK I believe is correct