3/5 Marines deploy from an HMM-361 helicopter during Operation Union II
Date
26 May – 5 June 1967
Location
Quế Sơn Valley , Quảng Nam and Quang Tin provinces, South Vietnam
Result
U.S./South Vietnamese claim victory
Belligerents
United States South Vietnam (withdrew May 30)
North Vietnam
Commanders and leaders
Colonel Kenneth J. Houghton
Unknown
Units involved
5th Marine Regiment 6th Regiment 1st Ranger Group
2nd Division
Casualties and losses
110 killed[1]
US body count: 701 killed 23 captured
v
t
e
Military engagements during the Vietnam War
Guerrilla phase
Laos
Biên Hòa
Đồng Khởi
Chopper
Palace Bombing
Sunrise
Shufly
Ấp Bắc
Go Cong
Hiep Hoa
34A
Long Dinh
Kien Long
Quyet Thang 202
USNS Card
Nam Dong
An Lao
Binh Gia
Camp Holloway
Dương Liễu – Nhông Pass
Qui Nhơn
Ka Nak
Sông Bé
Ba Gia
Dong Xoai
American intervention1965
Starlite
Piranha
An Ninh
Plei Me
Hump
Gang Toi
1st Bau Bang
Ia Drang
Bushmaster II
Harvest Moon
1966
Marauder
Crimp
Van Buren
Masher/White Wing
Double Eagle
Mastiff
Suoi Bong Trang
New York
Harrison
Cocoa Beach
Utah
Silver City
A Sau
Oregon
Texas
Lincoln
Fillmore
Jackstay
Buddhist Uprising
Xa Cam My
Georgia
Birmingham
Davy Crockett
Austin IV
Paul Revere
Crazy Horse
El Paso
Hardihood
Wahiawa
Lam Son II
Hawthorne
Hill 488
Nathan Hale
Jay
Macon
Hastings
Minh Thanh Road
John Paul Jones
Prairie
Colorado
Duc Co
Long Tan
SS Baton Rouge Victory
Amarillo
Byrd
Sunset Beach
Seward
Thayer, Irving and Thayer II
Attleboro
Deckhouse IV
Shenandoah
Atlanta
Paul Revere IV
Geronimo
Tan Son Nhut airbase
Fairfax
Firebase Bird
1967
Deckhouse V
Cedar Falls
Desoto
Gadsden
Sam Houston
Pershing
Enterprise
Tra Binh Dong
Bribie
Junction City (1st Prek Klok
2nd Prek Klok
Ap Gu
Suoi Tre
2nd Bàu Bàng)
Francis Marion
Lejeune
Union
Baker
Manhattan
The Hill Fights
Beaver Cage
Con Thien/DMZ
Hickory
Prairie II
Prairie III
Prairie IV
Buffalo
Kentucky
Kingfisher
Crockett
Malheur I and Malheur II
Kole Kole
Barking Sands
Union II
Dragnet
Akron
Billings
Concordia
The Slopes
Hong Kil Dong
Diamond Head
Coronado
Coronado II
Hood River
Suoi Chau Pha
Benton
Coronado IV
Swift
Dragon Fire
Wheeler/Wallowa
Coronado V
Kunia
Bolling
Medina
Shenandoah II
Ong Thanh
1st Loc Ninh
MacArthur
Dak To
Osceola
Lancaster
Coronado IX
Neosho
Santa Fe
Essex
Kien Giang 9-1
Napoleon
Phoenix
Manchester
Saratoga
Yellowstone
Muscatine
Badger Tooth
Auburn
Tet Offensive and aftermath
New Year's Day battle of 1968
McLain
Khe Sanh
Ban Houei Sane
Lang Vei
Coronado X
Tet Offensive
Da Nang
US Embassy
Cholon and Phu Tho Racetrack
Tan Son Nhut Air Base
Joint General Staff Compound
Bien Hoa and Long Binh
Hue
Quảng Trị
Bến Tre
Coburg
Lo Giang
Hop Tac I
Coronado XI
Houston
Patrick
Tam Kỳ
Truong Cong Dinh
Lima Site 85
Quyet Thang
My Lai Massacre
Walker
Carentan
Pegasus
Cochise Green
Toan Thang I
Burlington Trail
Scotland II
Delaware
Allen Brook
May Offensive
Dai Do
West Saigon
Landing Zone Center
An Bao
South Saigon
Concordia Square
Kham Duc
Coral–Balmoral
Jeb Stuart III
Nevada Eagle
Mameluke Thrust
Toan Thang II
Robin
Binh An
Thor
Pocahontas Forest
Quyet Chien
Somerset Plain
Phase III Offensive
Duc Lap
Champaign Grove
Vinh Loc
Thượng Đức
Maui Peak
Henderson Hill
Sheridan Sabre
Meade River
Hat Dich
Speedy Express
Taylor Common
Fayette Canyon
Vietnamization 1969–1971
DMZ Campaign (1969–1971)
Bold Mariner
Dewey Canyon
Toan Thang III
2nd Tet
Iron Mountain
Massachusetts Striker
Wayne Grey
Purple Martin
Ben Het
Maine Crag
Atlas Wedge
Frederick Hill
Geneva Park
Montana Mauler
Oklahoma Hills
Washington Green
Virginia Ridge
Apache Snow
Hamburger Hill
Lamar Plain
Pipestone Canyon
Binh Ba
Montgomery Rendezvous
Utah Mesa
Campbell Streamer
Idaho Canyon
Nantucket Beach
Fulton Square
LZ Kate
Toan Thang IV
Randolph Glen
Green River
Texas Star
FSB Ripcord
Cambodian campaign
Pennsylvania Square
Clinch Valley
Elk Canyon
Pickens Forest
Wolfe Mountain
Chicago Peak
Firebase O'Reilly
Chenla I
Imperial Lake
Jefferson Glenn
Tailwind
Son Tay Raid
Cuu Long 44-02
Toan Thang 1/71
Snuol
Lam Son 719
Finney Hill
Middlesex Peak
FSB Mary Ann
Caroline Hill
Long Khánh
Chenla II
Nui Le
1972
Easter Offensive
Cambodia and Mekong Delta
1st Quang Trị
Loc Ninh
An Lộc
Mỹ Chánh Line
Kontum
Thunderhead
2nd Quang Trị
The Vinh wiretap
Post-Paris Peace Accords (1973–1974)
War of the flags
Cửa Việt
Hồng Ngự
Tong Le Chon
Trung Nghia
Ap Da Bien
Quang Duc
Tri Phap
Svay Rieng
Iron Triangle
Duc Duc
Thượng Đức
Phú Lộc
Phước Long
Spring 1975
Ban Me Thuot
Hue–Da Nang
Phan Rang
Xuân Lộc
Fall of Phnom Penh
Fall of Saigon
Mayaguez incident
Air operations
Farm Gate
Chopper
Ranch Hand
Pierce Arrow
Barrel Roll
Pony Express
Flaming Dart
Iron Hand
Rolling Thunder
Steel Tiger
Arc Light
Combat Skyspot
Tiger Hound
Shed Light
Thanh Hoa
Bolo
Popeye
Yen Vien
Niagara
Igloo White
Commando Hunt
Giant Lance
Menu
Patio
Freedom Deal
Proud Deep Alpha
Linebacker I
Enhance Plus
Linebacker II
Homecoming
Tan Son Nhut Air Base
Babylift
New Life
Eagle Pull
Frequent Wind
Naval operations
Yankee & Dixie stations
Gulf of Tonkin
Market Time
Vung Ro Bay
Game Warden
Double Eagle
Stable Door
PIRAZ
Sea Dragon
Deckhouse Five
Bo De River, Nha Trang, Tha Cau River
Sealords
Đồng Hới
Pocket Money
Custom Tailor
End Sweep
Paracel Islands
East Sea
Lists of allied operations
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973–74
1975
Operation Union II was a search and destroy mission in the Quế Sơn Valley carried out by the 5th Marine Regiment. Launched on 26 May 1967 the operation ended on 5 June. U.S. reported the People's Army of Vietnam (PAVN) lost 701 killed and 23 captured, while U.S. casualties were 110 killed and 241 wounded.
^"Operation Union II - Declassified" (PDF). Virtual.vietnam.ttu.edu. Retrieved 2 December 2014.
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