Which reference source is most important when writing a historical fiction novel based on a World War II battle?

financial records of the army during the war

military action reports during the war

military accounts of medicine and supplies during the war

hospital records during the war
@anonymous_user

Question

Which reference source is most important when writing a historical fiction novel based on a World War II  battle?

financial records of the army during the war

military action reports during the war

military accounts of medicine and supplies during the war

hospital records during the war
  @anonymous_user

anonymous_user · Answer

I'm pretty sure you'd need "military action reports during the war" to write a fictional novel on WW2.