Task: Question Understanding
Input (English): Context : Carlos Romero Giménez, sometimes misspelled Jiménez, (Madrid, November 7, 1890 - Mexico City, September 11, 1978) was a Spanish soldier loyal to the Spanish Republic, and one of the most prominent figures in the Siege of Madrid during the Spanish Civil War. 
Question : In which war did Carlos Romero Giménez fought?
Output (English): conflict