 Complete the following phrase:  Prior to the War of 1812, Lewis declined the office of US Secretary of War under President James Madison. Instead, he resumed his duties as Quartermaster General and served in western New York. He was commissioned as a brigadier general on April 3, 1812 and was promoted to major general on March 2, 1813 as part of his service on the Niagara Frontier. He commanded the American forces at the 