Battle of Ia Drang

1965 battle of the Vietnam War
13°35′N 107°43′E / 13.583°N 107.717°E / 13.583; 107.717 Chu Pong-Ia Drang complex,[2] Central Highlands, South Vietnam
Result InconclusiveBelligerents  United States
Supported by:
 South Vietnam[1] Vietnam North VietnamCommanders and leaders Richard T. Knowles 1st Air Cavalry Division Fwd CP[3]: 210 
Tim Brown 3rd Air Cavalry Brigade[3]: 202 
Harold G. Moore, 1st Battalion, 7th Cavalry
Robert McDade, 2nd Battalion, 7th Cavalry
Robert B. Tully, 2nd Battalion, 5th Cavalry Nguyễn Hữu An B3 Field Front Fwd CP[4]
Phạm Công Cửu 66th Regiment Deputy Cmdr
Lã Ngọc Châu 7/66
Lê Xuân Phôi 8/66 
Nguyễn Văn Định 9/66Units involved

United States 1st Cavalry Division (Airmobile)

  • 3rd Brigade:[5]
    • 1st Bn, 7th Cavalry
    • 2nd Bn, 7th Cavalry
  • 2nd Brigade:[5]
    • 2nd Bn, 5th Cavalry

1st Battalion, 21st Artillery

  • Two batteries of artillery (included 24 M2 howitzers)[6]
3AC Fleet/SAC[7]

Vietnam 33rd Regiment:

  • 1st Battalion
  • 3rd Battalion

Vietnam 66th Regiment:

  • 7th Battalion
  • 8th Battalion
  • 9th Battalion
Strength Total: ~1,000 U.S. cavalry troops[8] and ~900 ARVN troops[9]
Two batteries of artillery[6]
Elements of multiple aircraft and helicopter support units flew 740 CAS sorties, along with 5 B-52 missions with 96 sorties[6]

Total: ~2,500 troops[10]

Separate 12.7 mm anti-aircraft gun and mortar units[6]Casualties and losses  United States: 237 killed, 258 wounded, and 4 missing (~50% of troop strength)
 South Vietnam 132 killed, 248 wounded, and 18 missing[11] U.S. claimed: 1,037–1,745 killed
PAVN report: 554 killed and 669 wounded (~49% of troop strength)[12] See Casualties section
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Military engagements during the Vietnam War
Guerrilla phase

American intervention 1965

1966

1967

Tet Offensive and aftermath

Vietnamization 1969–1971

1972

Post-Paris Peace Accords (1973–1974)

Spring 1975

Air operations

Naval operations

Lists of allied operations

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