"During the war, Dix kept a diary and a sketchbook with which he chronicled his experience. They would provide material for a major work of fifty prints called simply, The War. Dix was profoundly affected by the war. He described a recurring nightmare in which he crawled through bombed out houses. His experience with war and its aftermath became a dominant theme in the art he produced after 1914."
January 1, 1970
https://en.wikiquote.org/wiki/Otto_Dix