The gentleman who commanded the 1st Provisional Air Brigade was regarded as what?
1st Provisional Air Brigade The 1st Provisional Air Brigade was a temporary unit of the United States Army Air Service, commanded by Col. Billy Mitchell, operating out of Langley Field, Virginia, that was used in to demonstrate the vulnerability of ships to aerial attack when, in July 1921, the "unsinkable" German dreadnought SMS "Ostfriesland" was sent to the bottom of the Atlantic Ocean by bombardment. Other targets included the German destroyer SMS G-102, the SMS "Frankfurt", and the USS "Iowa".
Trafford Leigh-Mallory Air Chief Marshal Sir Trafford Leigh-Mallory, (11 July 1892 – 14 November 1944) was a senior commander in the Royal Air Force. Leigh-Mallory served as a Royal Flying Corps pilot and squadron commander during the First World War. Remaining in the newly formed RAF after the war, Leigh-Mallory served in a variety of staff and training appointments throughout the 1920s and 1930s.