Wayne N. Aspinall describes his enlistment in the Air Service of the United States Army at the start of US involvement in World War I and his enlistment for World War II at the age of 48. He speaks about the necessity of discipline in upbringing and in the military, changes in basic training from World War I to World War II, the necessity of military training, the obligation of military service, and his philosophy on war and the duties of citizenship....