1899-1961 1936-1939 american americanfiction(fictionalworksbyoneauthor) americanliterature americanparticipation americans civilwar ernest fiction fictioninenglish foreign foreignparticipation guerrillawarfare hemingway historia historicalfiction history largetypebooks militaryparticipation novela novelaestadounidense novelahistórica novelasespañolas open_syllabus_project readinglevel-grade10 readinglevel-grade11 readinglevel-grade12 readinglevel-grade8 readinglevel-grade9 spain spaincivilwar