Military histories can include details of military engagements and campaigns, allowing you to learn more about the places your ancestor served, battles, illnesses, supplies, food, weather, and terrain. In some cases you'll find day-to-day accounts of troop movements and daily routines.
Histories are typically compiled from a variety of sources, including official military records, as well as diaries and first-hand accounts.
Military histories have been written to document the many wars throughout the world. By reading these records, you can know the units in which your ancestors served and learn about what battles they fought in.
You can read of their heroism and feel pride in their accomplishments. If your ancestor did not serve in a war, you can find out what political issues may have affected their lives.