optimize the span of control in the division by giving each commander the maximum number of subordinate elements that could be controlled effectively. He believed such a division could be organized with 13,500 men of all ranks, a reduction of nearly 4,000 from the 1955 infantry division.[1]
On 15 October 1956 the Continental Army Command forwarded manning charts (Chart 30) for "ROCID" (Reorganization of the Current Infantry Division) to Washington. The planners followed Taylor's general guidance but recommended a division slightly larger than expected. They provided the tank and engineer battalions with five companies each and the division artillery with two battalions—five batteries of 105-mm. howitzers in one and an Honest John rocket, one 8-inch howitzer, and two 155-mm. howitzer batteries in the other. Each 105-mm. howitzer battery fielded six pieces and boasted of its own fire direction center, and each mortar battery in the battle group had assigned liaison, fire direction, forward air controller, and forward observer personnel. In addition to headquarters and headquarters detachment and band, the division trains included medical, ordnance, and transportation battalions and aviation, administrative, and quartermaster companies.[2]
Taylor hesitated to adopt the pentagonal structure for the armored division because he feared that such a change would make the organization too large. Nevertheless, Lt. Gen. Clyde Eddleman, the Deputy Chief of Staff for Military Operations, instructed the Continental Army Command to modernize the division by adding atomic weapons, increasing target acquisition capabilities, and reducing the number of vehicles. To carry out his wishes, the command added a reconnaissance and surveillance platoon to the reconnaissance battalion, provided aircraft in the aviation company to support it, and replaced the 155-mm. howitzers in one battery of the general support battalion with 8-inch howitzers that could fire nuclear rounds. No significant reduction in the number of vehicles took place because the atomic and conventional battlefields required more transportation resources than authorized in the existing division. A command and control battalion that included administration and aviation companies was added. To offset increases in the divisional elements, the command eliminated the antiaircraft artillery battalion.[3]
On 5 November 1956 the Army Staff approved the pentomic armored division with some exceptions. The staff directed the formation of separate divisional headquarters, aviation, and administrative companies in place of the suggested command and control battalion and moved the administration company to the trains. The former 155-mm. howitzer battalion was reorganized as a composite unit comprising an Honest John, an 8-inch howitzer, and two 155-mm. howitzer batteries. The Army published the "ROCAD" (Reorganization of the Current Armored Division) tables reflecting these changes in December 1956. They called for a division of 14,617 officers and enlisted men (Chart 31), 34 fewer than included in the 1955 tables. The tank count stood at 360, of which 54 were armed with 75-mm. guns and 306 with 90-mm. guns. All the medium tanks were in four tank battalions.[4]
- ↑ Ltr, CofS to CONARC, 23 Aug 56, sub: Reorganization of Current Infantry Division, Division General file, DAMH-HSO.
- ↑ Ltr, CONARC to DCofS for Military Operations and other addresses, 15 Oct 56, sub: Reorganization of Current Infantry Division, ATTNG-D&R 322/53 (Div) (15 Oct 56), and Ltr, CG, CONARC, to CoS, 21 Dec 56, sub: Basic Doctrinal Guidance in Connection with New (ROCID) Division Organization, ATCG (CG, CONARC), both Division General file, DAMH-HSO.
- ↑ Taylor's address, 28 Feb 57; CONARC, "Major Events and Problems, 1 Jul 56–30 Jun 57," vol, 1, Doctrine and Requirements Division, G3 Section, 1 Jan–30 Jun 57, pp. 20–23.
- ↑ CONARC, "Major Events and Problems, 1 Jul 56–30 Jun 57," vol. 3, Organization and Equipment, G3 Section, pp. 3–7; TOE 17T ROCAD, Armored Division, 1956.
