The

Army Reserve A military reserve force is a military organization whose members have military and civilian occupations. They are not normally kept under arms, and their main role is to be available when their military requires additional manpower. Reserve ...

's 66th Cavalry Division was created from the perceived need for additional cavalry units. It numbered in succession of the

Regular Army A regular army is the official army of a state or country (the official armed forces), contrasting with irregular forces, such as volunteer irregular militias, private armies, mercenaries, etc. A regular army usually has the following: * a standin ...

Divisions, which were not all active at its creation. Going into

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...

, the U.S. Army Cavalry contained three Regular, four

National Guard National Guard is the name used by a wide variety of current and historical uniformed organizations in different countries. The original National Guard was formed during the French Revolution around a cadre of defectors from the French Guards. Nat ...

, and six organized reserve cavalry divisions as well as one independent cavalry brigade, the 56th from Texas.

Organization

*Headquarters & Headquarters

Troop A troop is a military sub-subunit, originally a small formation of cavalry, subordinate to a squadron. In many armies a troop is the equivalent element to the infantry section or platoon. Exceptions are the US Cavalry and the King's Tr ...

*161st

Brigade A brigade is a major tactical military formation that typically comprises three to six battalions plus supporting elements. It is roughly equivalent to an enlarged or reinforced regiment. Two or more brigades may constitute a division. B ...

321st Cavalry Regiment ** 322nd Cavalry Regiment DUI

322nd Cavalry Regiment *162nd Brigade ** 323rd Cavalry Regiment DUI

323rd Cavalry Regiment ** 324th Cavalry Regiment DUI

324th Cavalry Regiment *866th Field Artillery Regiment *466th

Tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful engi ...

Company *66th

Signal In signal processing, a signal is a function that conveys information about a phenomenon. Any quantity that can vary over space or time can be used as a signal to share messages between observers. The '' IEEE Transactions on Signal Processing' ...

Troop *586th Ordnance Company *466th

Quartermaster Quartermaster is a military term, the meaning of which depends on the country and service. In land armies, a quartermaster is generally a relatively senior soldier who supervises stores or barracks and distributes supplies and provisions. In ...

Squadron Squadron may refer to: * Squadron (army), a military unit of cavalry, tanks, or equivalent subdivided into troops or tank companies * Squadron (aviation), a military unit that consists of three or four flights with a total of 12 to 24 aircraft, ...

*466th Armored Car Squadron *406th

Engineer Engineers, as practitioners of engineering, are professionals who invent, design, analyze, build and test machines, complex systems, structures, gadgets and materials to fulfill functional objectives and requirements while considering the limit ...

Squadron *366th

Medical Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practic ...

Squadron

Final Organization as of November 1940

Stationing

*The 66th Cavalry Division was dispersed across the United States. The division was primarily composed of personnel from

Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the sout ...

Missouri Missouri is a state in the Midwestern region of the United States. Ranking 21st in land area, it is bordered by eight states (tied for the most with Tennessee): Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas t ...

Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...

, and

North Dakota North Dakota () is a U.S. state in the Upper Midwest, named after the indigenous Dakota Sioux. North Dakota is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north and by the U.S. states of Minnesota to the east, So ...

References

Formations of the United States Army This is a list of historical formations of the United States Army. Units still in existence are in bold. For specific eras: * Formations of the United States Army during the Mexican Revolution * Formations of the United States Army during World ...

"Cavalry Regiments of the U.S. Army" by James A. Sawicki, Wyvern Publications 1985 pp375-379
*[http://www.history.army.mil/books/Lineage/M-F/index.htm/ MANEUVER AND FIREPOWER THE EVOLUTION OF DIVISIONS AND SEPARATE BRIGADES by John B. Wilson CENTER OF MILITARY HISTORY, UNITED STATES ARMY, WASHINGTON, D. C., 1998]

External links

The Ronald Reagan library at the University of Texas
66 {{US-Army-stub

Organization

Final Organization as of November 1940

Stationing

See also

References

External links