Image of instruction card issued to troops, on how to treat prisoners in Vietnam, from Andrew Sullivan’s TIME blog. … “Always treat your prisoner humanely.” It includes the following quotation:

“The courage and skill of our men in battle will be matched by their magnanimity when the battle ends. And all American military action in Vietnam will stop as soon as aggression by others is stopped.”
— Lyndon B. Johnson

Those were the days, huh?