Source of information:
Vietnam Order of Battle,Page 172 by Shelby L. Stanton

  Arrived Vietnam:     11 June 1965
Departed Vietnam:  11 July 1972
Previous Station:    Fort Ord, California
Authorized Battalion Strength:    1966: 893 - 1968: 899 - 1970: 899

   The 84th Engineer Battalion was organized 31 March 1930 in the Organized Reserves as the
602nd Camouflage Battalion Corps of Engineers, and assigned to the 5th Corps. On 20 August
1931 it was redesignated the 602nd Engineer Battalon (Camouflage). On 1 January 1938 the
602nd was assigned to the Regular Army .
   On 22 June 1940 the unit was redesignated 84th Engineer Battalion (Camouflage) (Army).
1 July 1940, "A" Company of the 84th  was activated at Fort Belvoir , Virginia, with the
remainder of the battalion being activated 3 June 1941. With the adopted motto "We Conceal",
the Battalion then became the pattern for the building of new engineer camouflage units.
The 84th was alerted for overseas duty in February 1943 and departed from Fort Dix ,
New Jersey during April of that year.

   During Word War II, the Battalion participated in the European Campaign, earning the
following campaign streamers: Naples-Foggia, Rome-Arn, Southern France (with arrowhead),
Rhinelan, D'Ardennes-Alsace, and Central Europe.

   The unit was reorganized and redesignated the 84th Engineer (Camouflage) Company
(Army)on 3 November 1945.On 15 November 1946, the 84th  was deactivated at
Fort Knox, ,Kentucky.On 12 April 1949, the Battalion was combined with
Headquarters and Headquarters and Service Company, 1001st Engineer Forestry Battalion,
and redesignated the 84th Engineer Construction Battalion . On 20 May 1949,the Unit was
reactivated at Fort Riley,Kansas.

   In 1950 the Battalion deployed to Korea in support of the United Nations Forces.
The 84th participated in all ten campaigns of the Korean Conflict, and it was there that the
I Corps Commander, Lt.General John W. "Iron Mike" O'Daniel,   gave the 84th the nickname:
"Conquerors of the Imjin".

   The 84th EBC, now designated The 84th Engineer Battalion (Combat)(Heavy), traces its
roots in the Pacific to the Korean War. It was during   Korea  that the words "Never Daunted"
were adopted as the unit motto. This was the sobriquet used by South Korean President
Syngman Rhee to characterize the battalion's performance as he presented the Republic of
Korea Presidential Unit Citation to the unit for bridging the lmjin River.

   On April 10 1965 HQ of the 35th Group (Const), at Ft.Polk, LA was alerted to go to
Vietnam, but without its two battalions - the 46th (Const) and 168th (Combat), assigned
to the Group. Instead,the 35th Group took the 864th (Const) from Ft Wolters TX and the
84th EBC from Fort Ord, CA. Soon after they were joined by the 864th &168th.

   The main part of the 35th Group left Ft Polk on 12 May 1965.
With the 84th and 864th Battalions, the 513th Co (Dump Truck), the 584th Co
(Light Equip.), 178th Co (Maint), & 53rd Engr Co (Supply Point), the 35th boarded the
USNS Eltinge and left San Francisco, CA on 13 May. While enroute the old WWII Liberty
ship, (just out of mothballs) had a lot of mechanical problems - including multiple pump failures
in the mid-Pacific. The ship was towed 500 miles to Midway Island, where all the troops and
cargo were transferred to the USNS Barrett.
   The Barrett sailed to Vietnam via the Philippines, where dependents wereoff-loaded. At this
unscheduled stop Colonel Haskins, the leader of the 35th Group advanced party,  was able
to fly in from Saigon and brief the staff officers who were aboard
the ship - immediately therefter returning to Saigon. On 9 June 1965, just 27 days after leaving
S.F. CA ,the USNS Barrett dropped anchor in Cam Ranh Bay.

                       These Engineers represented the First major contingent of US
                                    Army Engineers landing in Vietnam.

  The 84th EBC had normal construction battalion capabilities. It served at Qui Nhon, first
with the 937th Engr Group, and after December 1966 with the 45th Group. On 15 March
1968 it was transfered to the 35th Group, returning to the 937th Group again in February
1969. In late 1970, the battalion went to the 45th  Group and moved from Qui Nhon to
Da Nang.
   The battalion came under the control of the U.S. Army Engineer Command after the 45th 
Group departed Vietnam. After the Command was reduced to the U.S. Army Engineer Group,
Vietnam, the battalion served with it until it recieved orders to deploy from Vietnam in
July 1972.

                            For almost fifty years, the battalion has continued to
         execute vital engineer missions in support of U.S. National Strategy in the Pacific.

Change of Unit Crest
Submitted by Paul Farley

Renaming of the Camp at Qui Hhon
Submitted by Paul Farley