I Corps (South Vietnam)

I Corps
Quân đoàn I
Active1957–1975
Country South Vietnam
Branch ARVN
TypeCorps
Garrison/HQQuảng Trị Province
Thừa Thiên-Huế Province
Quảng Nam Province
Quảng Tín Province
Quảng Ngãi Province
Motto(s)Bến Hải Hưng Binh, Tiên Phong Diệt Cộng (Patriotic Soldiers of Bến Hải, Pioneers in Destroying the Communists)
EngagementsVietnam War
Commanders
Notable
commanders
Hoàng Xuân Lãm
Ngô Quang Trưởng
Insignia
Division flag
Map depicting the military regions of South Vietnam including the I Corps/I CTZ area.

I Corps (Vietnamese: Quân đoàn I) was a corps of the Army of the Republic of Vietnam (ARVN), the army of the nation state of South Vietnam that existed from 1955 to 1975. It was one of four corps of the ARVN. This was the northernmost region of South Vietnam, bordering North Vietnam at the Vietnamese Demilitarized Zone (DMZ). These five provinces are Quảng Trị Province, (Khe Sanh, Đông Hà, Quảng Trị City), Thừa Thiên-Huế Province, (Phu Bai, Huế City), Quảng Nam Province, (Đà Nẵng, Hội An), Quảng Tín Province, (Tam Kỳ, Chu Lai) and Quảng Ngãi Province, (Quảng Ngãi).

I Corps became operational in November 1957.[1]

Among its formations and units were the ARVN 1st Division. The I CTZ, later Military Region 1, was partnered with the U.S. III Marine Expeditionary Force and the XXIV Corps.

  1. ^ Williams, Kenneth (2019). The US Air Force in Southeast Asia and the Vietnam War A Narrative Chronology Volume I: The Early Years through 1959 (PDF). Air Force History and Museums Program. p. 236.Public Domain This article incorporates text from this source, which is in the public domain.