This resource has a lesson plan on the origins of the Purple Heart medal, which is given to any soldier wounded in the line of duty. The medal was established by George Washington and is the oldest American medal.

This site discusses how "Millions volunteered or were drafted for military duty during World War II. The majority of these citizen-soldiers had no idea how to conduct themselves to prevent inadvertent disclosure of important information...

[Caesar] mustered the soldiers in the Campius Martius, and requested a statement of their grievances. Their demands appeared to have a reference to a payment of their dues, the bestowal of promised presents, and a release from further...