Share This Article 1. Francis Lieber, who wrote the first set of US military regulations to comprehensively regulate the conduct of war, fought at this battle. The Battle of Gettysburg The Battle of Waterloo The Battle of Shiloh The Battle of the Somme 2. The Posse Comitatus Law was passed in this year. 1859 1878 1914 1787 3. During the 1968 Battle for Hue, these anti-aircraft weapons were used for lack of tanks. M42 Dusters M51 Skysweepers M163 Vulcan M247 Sergeant York Loading …