Who historically aided in the creation of "The Blue Book" for military drill?

The creation of "The Blue Book," officially known as "The Regulations for the Order and Discipline of the Troops of the United States," was significantly influenced by Baron Friedrich von Steuben, a former Prussian officer. He was brought in during the American Revolutionary War to help train the Continental Army. His extensive experience in Prussian military tactics and discipline played a vital role in the development of standardized drill and organizational procedures for American troops. The manual established a foundation for military training that emphasized discipline and proper drill movements, which were essential for the effectiveness of the army at that time. This historical context underlines why the involvement of a former Prussian officer is the correct choice in relation to the creation of "The Blue Book."