Total Strength 66,779
Unit: Estimated Strength: Northern Troops and Landing Force Troops 2,296 Lt. Gen. Holland M. Smith, USMC (to 12 July 1944) Headquarters and Service Battalion, V Amphibious Corps (less detachments) Signal Battalion, V Amphibious Corps (less detachments) Motor Transport Company, V Amphibious Corps (less detachments) Headquarters, Provisional Engineer Group, V Amphibious Corps Headquarters, Provisional LVT Group, V Amphibious Corps 7th Field Depot (less detaehments) (reinforced) Medical Battalion, V Amphibious Corps 31st Field Hospital 2d Provisional Portable Surgical Hospital 3d Provisional Portable Surgical Hospital Air Warning Squadron 5 (less detachments) Detachment, 680th Air Warning Company Detachment, 726th Air Warning Company Detachment, 763d Air Warning Company Detachment, Company C, 101st Signal Battalion Mobile Communication Unit, Central Pacific Amphibious Reconnaissance Battalion, V Amphibious Corps (less detachments) 2d Marine Division 21,746 Maj. Gen. Thomas E. Watson, USMC Headquarters Battalion Tank Battalion Service Battalion Motor Transport Battalion Medical Battalion 2d Marines (less 1 battalion) 6th Marines 8th Marines 10th Marines (artillery) 18th Marines (engineer) Attached Units: 2d Amphibious Tractor Battalion (LVT) 1st Battalion, 29th Marines (reinforced) 1st Amphibious Truck Company 18th Naval Construction Battalion 2d Joint Assault Signal Company (JASCO) 2d 155-mm Artillery Battalion 715th Amphibious Tractor Battalion (LVT(A))
Unit: Estimated Strength: 5th Amphibious Tractor Battalion (LVT) 2d Provisional Rocket Detachment 4th Marine Division 21,618 Maj. Gen. Harry Schmidt, USMC (to 12 July) Headquarters Battalion Tank Battalion Service Battalion Motor Transport Battalion Medical Battalion 23d Marines 24th Marines 25th Marines 14th Marines (artillery) 20th Marines (engineer) Attached Units: 708th Amphibious Tank Battalion (LVT(A)) (Army) 10th Amphibious Tractor Battalion (LVT) (less Company A and plus Company C, 11th Amphibious Tractor Battalion) 773d Amphibious Tractor Battalion (LVT) (Army) 534th Amphibious Tractor Battalion (LVT) (Army) 1st JASCO 121st Naval Construction Battalion 2d Amphibious Truck Company 311th Port Company (Army) 539th Port Company (Army) 4th 105-mm. Artillery Battalion (howitzer) (V Amphibious Corps) 1st Provisional Rocket Detachment Detachment, Air Warning Squadron 5 Detachment, 7th Field Depot 1st Battalion, 2d Marines (reinforced) 1,084 1st Battalion, 2d Marines Company A, Amphibious Reconnaissance Battalion,V Amphibious Corps XXIV Corps Artillery 2,682 Brig. Gen. Arthur M. Harper, USA Headquarters and Headquarters Battery 1st Provisional Gun Group (155-mm. gun, Army) 2d Battalion, 55th Coast Artillery 32d Coast Artillery Gun Battalion 225th Field Artillery Howitzer Group (155-mm. howitzer) 145th Field Artillery Battalion 225th Field Artillery Battalion 477th Amphibious Truck Company Provisional Antiaircraft Artillery Group 949 864th Aircraft Warning Antiaircraft Battalion (less detachments) Battery A, 751st Antiaircraft Battalion Battery B, 751st Antiaircraft Battalion 27th Infantry Division 16,404 Maj. Gen. Ralph C. Smith, USA Headquarters, 27th Infantry Division Headquarters, Special Troops
Unit: Estimated Strength: Headquarters Company Military Police Platoon 27th Division Band 27th Cavalry Reconnaissance Troop 727th Ordnance Company 27th Quartermaster Company 105th Infantry 106th Infantry 165th Infantry Headquarters, 27th Division Artillery 104th Field Artillery Battalion 105th Field Artillery Battalion 106th Field Artillery Battalion 249th Field Artillery Battalion 102d Engineer Battalion 102d Medical Battalion Attached Units: 38th Field Hospital 98th Portable Surgical Hospital 295th JASCO 762d Tank Battalion 766th Tank Battalion 1165th Engineer Group headquarters 34th Engineer Battalion 152d Engineer Battalion 1341st Engineer Battalion 94th Bomb Disposal Squad 95th Bomb Disposal Squad 88th Chemical Battalion 604th Quartermaster Graves Registration Company Detachment, 534th Amphibious Tractor Battalion Source: TF 56 Rpt FORAGER, Incl C, G-3 Rpt, pp. 8-9; NTLF Rpt Marianas, Phase 1, Incl C, G-1 Rpt, pp. 2-5; 4th Marine Div Opns Rpt Saipan, pp. 3-4.