Since the founding of this nation, Americans have lived by the belief that wars have laws. Even in the most morally-challenging times, the principles of international humanitarian law (IHL)--which provide basic protections for the vulnerable, such as civilians, prisoners of war, and sick and injured combatants--have been championed by leaders like George Washington and Abraham Lincoln. Such principles can serve as a guide today in addressing difficult questions like the treatment of detainees and the issue of torture. The United States has a rich history of promoting and upholding humanitarian principles. Those who have defended this country and many who serve in the country's leadership know the importance of IHL. It is now up to the next generation to learn about and respect these principles to ensure that this important tradition is carried on. (Contains 18 notes.)