Answer:
History.
Step-by-step explanation:
The novel discussing the 'true events that occurred during World War II' would most likely align with a historical lens. Such a novel would discuss the socio-political and economic background or circumstances during the time of the second world war. It will serve as a source of analyzing and interpreting history in different manners which could be evidence and interpretation, historical outlook, 'continuity and change', etc. Thus, a book discussing the past events of a significant battle would line up with historical outlook and analyze as well as interpret the historical events in distinct and interesting ways.