1-CD-(S) Order of Battle WW-2
Hqs & Hqs Troops, 1st Cavalry Division
5th Cavalry Regiment
12th Cavalry Regiment
7th Cavalry Regiment
8th Cavalry Regiment
61st Field Artillery Battalion (105-MM)
82nd Field Artillery Battalion (105-MM)
99th Field Artillery Battalion (105-MM)
271st Field Artillery Battalion (105-MM)
8th Engineer Squadron
1st Medical Squadron
1st Signal Troop
27th OD Med Mat Co
16th Quartermaster Squadron
302nd Reconnaissance Troop MECZ
603rd Medium Tank Company
Military Police Platoon
801st Counter Intelligence Corps Detachment
1-CD-(S) – Overseas Wartime Assignments
6th Army (US) July 23, 1943.
10th Corps (US) October 1, 1944.
8th Army (US) December 26, 1944.
6th Army (US) January 27, 1945.
14th Corps (US) January 31, 1945.
11th Corps (US) June 15, 1945.
8th Army (US) August 15, 1945.
1-CD-(S) – Wartime Commanders
Maj Gen Innis P. Swift, Apr 1941 – Aug 1944.
Maj Gen Verne D. Mudge, Aug 1944 – Feb 1945.
Brig Gen Hugh F. T. Hoffman, Feb 1945 – Jul 1945.
Maj Gen William C. Chase, Jul 1945 – Deactivation
Killed in Action: 734
Wounded in Action: 3311
Died of Wounds: 236
1-CD-(S) Combat Narrative
The 1st Cavalry Division (Special) arrived in Australia on July 26, 1943, and engaged in the jungle and amphibious training at Toorbul Point and Port Stephens. The 2nd Cavalry Brigade departed Strathpine Australia on December 19, and arrived in Oro Bay New Guinea on December 20. The division established its command post at Cap Sudest New Guinea on January 4, 1944, and by February 25, the remainder of the division had arrived in Oro Bay from New Guinea. It then trained for operations in the Admiralty Islands. A squadron of the 5-CAV landed on Los Negros Island on February 29, and after heavy combat occupied the Momote Airfield. It was then reinforced by the 2nd Squadron of the 7-CAV on March 4, while on March 6, the 12-CAV landed. The 2nd Cavalry Brigade arrived on March 9 and employed the 8-CAV to assault the Manus Island on March 15 which overran the Lugos Mission, followed by the 7-CAV. By March 18, Lorengau and its airfield had been captured, and the division mopped up both Los Negros and Manus and seized other nearby islands that secured the Admiralties by May 18, 1944. The division then trained for the next operation until departure for the Philippines on October 12.
The 5-CAV, 7-CAV, and the 12-CAV assaulted the Leyte Island on October 20, and cleared San Jose Tacloban Airfield, and Cataisan Peninsula. The 8-CAV landed at La Paz Samar Island and secured the San Juanico Strait on October 24. The division regrouped on October 28, as the 2nd Cavalry Brigade assembled at Barugo, converged on Carigara and contacted the elements of the 24-ID on November 2.
The 12-CAV was attached on November 15 and assumed responsibility for the Capocan-Carigara-Barugo area. The division cleared the Mount Badian – Hill 2348 region from November 28 to December 9, and the 12-CAV battled at the ridge south of Limon November 30 to December 10, when the 7-CAV relieved it and finally captured it on December 14. The 12-CAV pushed into Lonoy on December 19 and seized Kananga 2 days later. The division attacked then west toward the coast over swamps against scattered resistance on December 23, and the 5-CAV, as well as the 12-CAV, reached the coast at Tibur on December 28.
The 1-CAV then fought past Villaba to contact the 32-ID on December 30. The 8-CAV returned from patrolling on the Samar Island on January 8, 1945, and prepared for movement to Luzon. The 1-CAV landed in the Mabilao area of Lingayen Gulf Luzon on January 27, and the 12-CAV was relieved from the attachment on January 31 as the division attacked with the 5-CAV and the 8-CAV from Guimba toward Manila. The division entered Manila on February 3 and fought through fierce opposition in the northern and eastern suburbs. The 12-CAV attacked the Rosario Heights on February 10, and the division overran Neilson Field to reach the shore of Manila Bay 2 days later. The 7-CAV captured crossings over the Mariquina River in the Ugong-Rosario area on February 20. The 2nd Cavalry Brigade attacked from the Taytay area on February 23 toward the Shimbu Line but was checked 2 days later in the Antipolo area. The 5-CAV captured the Agriculture Building in Manila on March 1 and the division began its drive against the Shimbu Line with four regiments abreast on March 8 and stormed Bench Mark Hill 11, and seized the crest of Bench Mark Hill 9 on March 10.
It was relieved in the Antipolo area on March 12 and withdrew for rehabilitation. The division began then the drive on Lipa by taking Santo Tomas on March 24 and Los Banos the following day.
By March 29, the 8-CAV had captured Lipa and established contact with the 11-A/B, and next opened the Batangas-Calamba supply road into Manila. The division then turned east and the 7-CAV seized Alaminos on April 1 while the 12-CAV fought the battle for the Imoc Hill on April 1/5. The 5-CAV had reached San Pablo on April 2 and after heavy combat, the division took Mauban on the east coast on April 10 and established contact with the 11-A/B at Lamon Bay the next day. The 1st Cavalry Brigade pushed into the Bicol Peninsula on April 12 and the Japanese defenders had been pocketed north of Mount Matassana Bundoc by April 16. This area was reduced by the 2nd Cavalry Brigade commencing April 17. Beginning on May 2, the 5-CAV probed Mount Isarong for the next two weeks. The division was relieved of its combat missions on June 26 and engaged exclusively in training at Lucena, where it had been since May 6. The division was in this capacity when hostilities ended.