Complex sentence: During the Spanish civil-war, she served as an interpreter and secretary at a hospital in Valencia, and made contact with the Comintern in Barcelona, who gave her an assignment to infiltrate the troups of Francisco Franco in south of France.
Split into simpler sentences: During the Spanish civil-war, she served as an interpreter and secretary at a hospital in Valencia. She made contact with the Comintern in Barcelona, who gave her an assignment to infiltrate the troups of Francisco Franco in the south of France.