U.S. Military Units That Served in WWII

Name Beginning With (4)

Updated 6/2/12

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Name                                                                            Resource #

4th Air Support Command                                                                  437

4th Alaskan Regiment                                                                         447

4th Armored Division                                                                          27; 91; 92; 93; 94; 95; 269; 298; 316; 351; 375; 382; 402; 406; 432; 437; 524; 534;

                                                                                                           557; 664; 831; 893

4th Battalion, 11th Marine Regiment (Artillery), 1st Marine Division      753

4th Battalion, 12th Marine Regiment (Artillery), 3rd Marine Division     753

4th Battalion, 14th Marine Regiment (Artillery), 4th Marine Division      753

4th Battalion (Provisional), 4th Marine Regiment                                   753

4th Bomb Wing                                                                                   257; 283; 737

4th Cavalry Group                                                                               557; 831

4th Cavalry Reconnaissance Squadron                                                 384; 482; 831

4th Cavalry Reconnaissance Troop                                                      831

4th Cavalry Regiment                                                                           831

4th Combat Cargo Group                                                                    579

4th Combat Engineer Battalion                                                             557

4th Combat Wing, 3rd Division, Eighth Air Force                                 420

4th Fighter Group                                                                                28; 242; 283; 319; 425; 736; 757; 765

4th Infantry Division                                                                            22; 27; 37; 87; 170; 193; 197; 239; 284; 351; 375; 382; 384; 403; 457; 472; 482; 557;

                                                                                                          583; 831; 839; 893

4th Infantry Regiment                                                                          447; 785

4th Marine Air Wing                                                                           577

4th Marine Amphibian Tractor Battalion                                              753

4th Marine Defense Battalion                                                              753

4th Marine Division                                                                             54; 115; 152; 185; 254; 401; 753; 754

4th Marine Raider Battalion                                                                 753

4th Marine Regiment                                                                           45; 108; 145; 297; 458; 526; 753

4th Marine Tank Battalion                                                                   753

4th Mechanized Cavalry Group                                                           437

4th Ranger Battalion                                                                            243; 436; 839

4th Reconnaissance Troop                                                                   557

40th Bombardment Group                                                                   765

40th Bomb Wing                                                                                 737

40th Cavalry Reconnaissance Troop                                                    831

40th Infantry Division                                                                           528; 831

40th Mobile Communications Squadron                                               893

40th Naval Construction Battalion                                                        570

40th Tank Battalion, 7th Armored Division                                           107; 557

41st Armored Cavalry Division                                                            557

41st Armored Infantry Regiment, 2nd Armored Division                       59; 344; 557; 727

41st Bombardment Group                                                                    754

41st Bomb Wing                                                                                  737

41st Cannon Company, 9th Infantry Division                                        540

41st Cavalry Reconnaissance Squadron, 11th Armored Division           344; 831

41st Cavalry Reconnaissance Troop                                                     831

41st Engineer Battalion                                                                         379

41st Infantry Division                                                                           147; 317; 488; 528; 831

42nd Bomb Group, Fifth Air Force                                                      110; 314

42nd Cavalry Reconnaissance Squadron                                              831

42nd Field Artillery Battalion                                                                197

42nd Field Hospital                                                                              557; 585

42nd Infantry Division                                                                          130; 178; 369

43rd Bomb Group, Fifth Air Force                                                      173; 271; 314; 754

43rd Bomb Squadron, 29th Bomb Group                                            507

43rd Cavalry Reconnaissance Squadron                                              831

43rd Cavalry Reconnaissance Troop                                                   831

43rd Infantry Division                                                                          8; 18; 54; 184; 293; 354; 528; 831

44th Bomb Group                                                                                283; 328; 623; 737

44th Bombardment Group                                                                    893

44th Combat Engineer Battalion                                                           557

44th Field Artillery Battalion, 4th Infantry Division                                170

44th Fighter Squadron, Thirteenth Air Force                                        5

44th Infantry Division                                                                           289; 375; 382; 831

44th Pursuit Squadron                                                                         737

44th Service Squadron                                                                        893

45th Armored Division                                                                        269

45th Bomb Wing                                                                                 737; 765

45th Cavalry Reconnaissance Troop                                                    267; 831

45th Field Hospital                                                                              198; 585; 612

45th Fighter Squadron                                                                         765

45th Infantry Division                                                                           66; 130; 183; 243; 316; 331; 372; 375; 382; 397; 423; 456; 482; 516; 578; 831; 839; 893

45th Troop Carrier Squadron, 316th Troop Carrier Group                  591

46th Engineer Regiment                                                                       249

46th Naval Construction Battalion                                                        570

46th Pursuit Squadron                                                                         737

47th Field Hospital                                                                              557

47th Infantry Regiment, 9th Infantry Division                                        129; 193; 208; 375; 382; 482; 487

47th Pursuit Squadron                                                                         443; 619; 737

47th Tank Battalion, 14th Armored Division                                         432

48th Armored Infantry Battalion, 7th Armored Division                        107; 470; 557

48th Armored Medical Battalion, 2nd Armored Division                       727

48th Field Artillery Battalion, 7th Infantry Division                                447

48th Fighter Group                                                                              353

48th Surgical Hospital                                                                          585

48th Troop Carrier Squadron                                                               893

49th Cavalry Reconnaissance Squadron                                               831

49th Fighter Group                                                                              116; 271; 290; 443; 754

49th Pursuit Group                                                                               290

49th Service Group                                                                              893

49th Signal Construction Battalion                                                        217

49th Troop Carrier Squadron                                                               893

400th Armored Field Artillery Battalion                                                557; 910

400th Bomb Squadron, 90th Bomb Group (Heavy)                             613

401st Bomb Squadron, 91st Bomb Group                                           257; 265; 334

401st Glider Infantry Regiment                                                             27; 91; 100; 482; 893

404th Fighter Group, Ninth Air Force                                                  167; 353

404th Signal Company                                                                         532

405th Fighter Bomber Group                                                               248

405th Infantry Regiment                                                                       382

405th Squadron, 38th Bomb Group, Fifth Air Force                            173; 754

406th Field Artillery Group                                                                  557

406th Fighter Group                                                                            276; 441

406th Infantry Regiment                                                                       382

406th Fighter Group                                                                            893

407th Airborne Quartermaster Company                                              482

411th Infantry Regiment                                                                       382

413th Fighter Squadron, 414th Fighter Group                                      12

413th Infantry Regiment, 104th Infantry Division                                   437

414th Fighter Group                                                                            12

414th Infantry Regiment, 104th Infantry Division                                  140

415th Bomb Group                                                                             104

415th Infantry Regiment, 104th Infantry Division                                   422

417th Bomb Group                                                                             164

418th Army Air Forces Band                                                              195

420th Armored Field Artillery Battalion                                               557

422nd Infantry Regiment, 106th Infantry Division                                 87; 197; 295; 470; 557

423rd Infantry Regiment, 106th Infantry Division                                 87; 197; 470; 557

424th Infantry Regiment, 106th Infantry Division                                  87; 197; 470; 482; 557

424th Regimental Combat Team                                                         470

425th Night Fighter Squadron                                                             248

425th Troop Carrier Group                                                                 557

430th Detachment of the Counter Intelligence Corps                            369

431st Bombardment Squadron                                                            754

431st Squadron, 475th Fighter Group                                                 116; 754

432nd Fighter Squadron                                                                     164; 754

433rd Fighter Squadron

433rd Troop Carrier Group                                                                579

434th Troop Carrier Group                                                                 92; 893

435th Antiaircraft Battalion                                                                  785

435th Troop Carrier Group                                                                 92; 383; 893

4435th Troop Carrier Group, Combat Team                                        893

436th Troop Carrier Group                                                                 383; 613; 893

437th Troop Carrier Group                                                                 92; 383; 893

438th Troop Carrier Group                                                                 92; 383; 893

439th Troop Carrier Group                                                                 92

440th Antiaircraft Artillery Battalion                                                     557

440th Troop Carrier Group                                                                 92; 844; 893

441st Troop Carrier Group                                                                 92; 893

442nd Regimental Combat Team                                                        402; 578; 785

442nd Regimental Combat Team Anti-Tank Company                        893

442nd Troop Carrier Group                                                                383; 893

443rd Troop Carrier Group                                                                579

445th Bomb Group                                                                             465; 490

446th Bomb Group                                                                             482

447th Bomb Group                                                                             257; 420

448th Bomb Group                                                                             482

453rd Bomb Group                                                                             308; 465

455th Air Service Group                                                                      893

456th Air Service Group                                                                       893

456th Parachute Field Artillery Battalion                                              100; 214; 397; 482; 557; 893

459th Anti-Aircraft Battalion, 29th Infantry Division                              403

460th Fighter Squadron                                                                       757

460th Parachute Field Artillery Battalion                                               893

463rd Parachute Field Artillery Battalion                                              91; 100; 557; 893

464th Field Artillery Battalion; 17th Airborne Division                          187

464th Parachute Field Artillery Battalion                                               893

466th Bomb Group                                                                              727

466th Parachute Field Artillery Battalion; 17th Airborne Division          96; 187

467th Anti-Aircraft Artillery Automatic Weapons Battalion                   200

468th Bomb Group, 58th Bomb Wing, Twentieth Air Force                 890

471st Bomb Squadron                                                                         451

474th Infantry Regiment                                                                       436

475th Fighter Group, Fifth Air Force                                                   173; 754

478th Fighter Squadron                                                                       353

479th Fighter Group                                                                            7

482nd Antiaircraft Artillery Battalion, 9th Armored Division                  470

482nd Bomb Group                                                                            283

483rd Bomb Group, Fifteenth Air Force                                              571

484th Quartermaster Battalion                                                             437

487th Fighter Squadron, 352nd Fighter Group                                     12; 765

489th Bomb Group                                                                             482

490th Bomb Group, Eighth Air Force                                                  139

490th Bomb Squadron                                                                        338

492nd Bombardment Group                                                                28; 105

494th Bomb Group                                                                             618

498th Squadron, 345th Bomb Group, Fifth Air Force                          173; 754

499th Squadron, 345th Bomb Group, Fifth Air Force                          173; 754

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