rank of captain and the temporary rank of colonel. He was recommended for promotion to temporary brigadier general in October 1918, but the Armistice occurred before the recommendation was acted on. After the Armistice, Marshall served as chief of staff for the U.S. Eighth Corps. Between the wars After the war, Marshall reverted to his permanent rank of captain. In 1919, he became an aide-de-camp to General Pershing. Between 1920 and 1924, while Pershing was Army Chief of Staff, Marshall worked on a number of projects that focused on training and teaching modern, mechanized warfare. He taught at the Army War College and was a key planner in the War Department. He then served as executive officer of the 15th Infantry Regiment in the Republic of China, where he remained for three years and learned to speak basic Mandarin. In 1927, as a lieutenant colonel, he was appointed assistant commandant of the Infantry School at Fort Benning, where he initiated major changes to modernize command and staff processes, which proved to be of major benefit during World War II. Marshall placed Edwin F. Harding in charge of the Infantry School's publications, and Harding became editor of Infantry in Battle, a book that codified the lessons of World War I. Infantry in Battle is still used as an officer's training manual in the Infantry Officer's Course and was the training manual for most of the infantry officers and leaders of World War II. Marshall's first wife died in 1927. The following year, while stationed at Fort Benning, Marshall met Katherine Tupper Brown at a dinner party. They married on October 15, 1930, at Emmanuel Episcopal Church in Baltimore, Maryland. The wedding made headlines as General Pershing served as Marshall's best man. From June 1932 to June 1933, Marshall was the commanding officer of the 8th Infantry Regiment at Fort Screven, Georgia. From July 1933 to October 1933 he was commander of Fort Moultrie, South Carolina, and District I of the Civilian Conservation Corps, and he was promoted to colonel in September 1933. During the Great Depression he became a strong supporter of President Franklin D. Roosevelt and the New Deal. He was senior instructor and chief of staff for the Illinois National Guard's 33rd Division from November 1933 to August 1936. Marshall was promoted to general in 1936 and assigned to command the 5th Brigade of the 3rd Infantry Division and