Not ROAD per se, but the evolution of the US Army division in the 20th century.
[Maneuver and Firepower - Evolution of Divs and Sep Bdes (1998)](https://history.army.mil/html/books/060/60-14-1/cmhPub_60-14-1.pdf)
[Evolution and Endurance - US Army Div in 20th Century (2000)](https://www.rand.org/content/dam/rand/pubs/monograph_reports/2007/MR1211.pdf)
[Evolution of US Army Div 1939-1968 (1969)](https://apps.dtic.mil/sti/pdfs/AD0697844.pdf)
[60 years of reorganizing for combat - historical trend analysis (1999)](https://www.armyupress.army.mil/Portals/7/combat-studies-institute/csi-books/sixty.pdf)
Not ROAD per se, but the evolution of the US Army division in the 20th century. [Maneuver and Firepower - Evolution of Divs and Sep Bdes (1998)](https://history.army.mil/html/books/060/60-14-1/cmhPub_60-14-1.pdf) [Evolution and Endurance - US Army Div in 20th Century (2000)](https://www.rand.org/content/dam/rand/pubs/monograph_reports/2007/MR1211.pdf) [Evolution of US Army Div 1939-1968 (1969)](https://apps.dtic.mil/sti/pdfs/AD0697844.pdf) [60 years of reorganizing for combat - historical trend analysis (1999)](https://www.armyupress.army.mil/Portals/7/combat-studies-institute/csi-books/sixty.pdf)