 The younger Christian was a colonel in command of the 361st Fighter Group flying P-51 Mustangs in the European Theater of Operations in World War II when he was killed in action in August 1944; his personal aircraft, Lou IV, was one of the most photographed P-51s in the war.As an important element of the ideology of the "Lost Cause", Jackson has been commemorated in numerous ways, including with statues, currency, and postage.A poem penned during the war soon became a popular song, "Stonewall Jackson's Way".