Combat Lessons, Number 2, September 1946
Report of Commanding General, 3d Division, on its landing in SICILY:
"The importance of physical condition cannot be over-emphasized. Speed-marching proved of great value in developing physical condition, eliminating the unfit, and instilling confidence and pride in the individual. Asa general training objective, all units prepared for a landing on defended beaches and an advance inland of about 5 miles. Speed-marching continued, each unit being required to complete 5 miles in 1 hour, 8 miles in 2 hours, and 20 miles in 5 hours once a week. This training was largely responsible for the speed with which the assault of this Division was executed."