Eighth US Army

Definition/Scope: Eighth United States Army (EUSA) supports deterrence of North Korea aggression against the Republic of Korea (ROK). Should deterrence fail, EUSA supports NEO, transitions to hostilities, generates combat power to support CINC UNC/CFC ’s campaign, and provides combat support and combat service support to assigned, attached, and other designated forces within the Korea Theater of Operation and on order, conducts combat operations. EUSA was officially activated in the continental United States on June 10, 1944, and ordered to the Pacific where, under the command of LG Robert L. Eichelberger, it earned the sobriquet of "Amphibious Eighth" while making more than 60 "island-hopping" assaults. EUSA also assisted in the liberation of the Philippines and on July 1, 1945, assumed control of the archipelago, bringing enemy resistance to an end. Eighth Army was being readied for the main assault on the Kanto Plain (Tokyo) of the Japanese main island, when V-J Day changed its mission. Along with the Sixth Army, EUSA provided the ground forces for General of the Army Douglas MacArthur’s occupation of Japan. Occupational forces landed peacefully on August 30. First the northern portion and, after January 1, 1946, all of Japan came under EUSA’s jurisdiction. Part of Eighth Army’s post-war duties included disarming Japanese military forces; destroying the nation’s war making potential; conducting the trial of war criminals; guiding the defeated nation into peaceful pursuits and the democratic way of life; encouraging economic rehabilitation, local autonomy, and education and land reform; guarding installations; protecting supply routes and watching over government operations.

Use:

Eighth USA

Acronym:

EUSA

Broader Terms:

Army Service Component Command
unified commands (Army components)
US Army Forces Command
US Army Material Command, Combatant Command, Functional
US Army Training and Doctrine Command
US Forces Korea

Narrower Terms:

18th Medical Command
19th TAACOM
1st Area Support Activity
2d Infantry Division (Mechanized)
Commander, Eighth US Army
Wightman NCO Academy

Related Terms:

19th Theater Support Command
1st Signal Brigade
501st Military Intelligence Brigade
8th Military Police Brigade
Depot Support Activity Far East
Military Surface Deployment and Distribution Command
South Korea
Third U.S. Army
United Nations Command
US Army Space and Missile Defense Command/ Army Strategic Command
US Army, Europe, Combatant Command, GEO
US Army, North, Combatant Command, GEO
US Army, Pacific, Combatant Command, Geo
US Army, South, Combatant Command, GEO
US Central Command, Combatant Command, AOR/Unified
US Special Operations Command, Combatant Command, Functional