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 Waterloo The Battle of the Somme The Battle of Shiloh The Battle of Gettysburg 2. The Posse Comitatus Law was passed in this year. 1787 1878 1859 1914 3. During the 1968 Battle for Hue, these anti-aircraft weapons were used for lack of tanks. M42 Dusters M51 Skysweepers M247 Sergeant York M163 Vulcan Loading …