Which type of source would you consult for soldier's accounts of war in obscure terrain?

For soldier's accounts of war in obscure terrain, you would consult primary sources such as memoirs, diaries, or letters written by soldiers who experienced the conflict firsthand. Military oral histories and interviews can also provide valuable insights into personal experiences. Additionally, specialized historical books or journals that focus on specific battles or campaigns may offer curated accounts from multiple soldiers, enriching your understanding of the context and challenges faced.