4th Corps () or Cá»Âu Long Corps (, literally: Corps of Cá»Âu Long or "Corps of the Mekong") was one of the three regular army corps of the People's Army of Vietnam. First organized in 1974 during the Vietnam War, 4th Corps had a major role in the Ho Chi Minh Campaign and the CambodianâÂÂVietnamese War. Before disbanding, the corps was stationed in Dé An, Bình Dðáng.
In July 1973, the Central Committee of the Communist Party of Vietnam after its 21st conference issued a resolution of strengthening the armed forces in order to unify the country. In executing the issue, three months later the Ministry of Defence and the Military Commission of the Central Committee approved the plan of organizing regular army corps for the Vietnam People's Army. On July 20, 1974, General Võ Nguyên Giáp, Minister of Defence, signed the edict that led to the establishment of the 4th Corps in ÃÂông Nam Bá»Â, where is located the part of Mekong River called Cá»Âu Long River (Cá»Âu Long Giang or Sông Cá»Âu Long), from which came the name Cá»Âu Long Corps of the unit. The first headquarters of the corps consisted of party committee secretary (bàthð) Hoàng Thế Thiá»Ân and commander (tð lá»Ânh) Hoàng Cầm.
During the Ho Chi Minh Campaign, it was 4th Corps that advanced through the delta regions of Phðá»Âc Long, Biên Hòa and later captured the Special Capital Military District of Saigon and several important targets within Saigon. After the Vietnam War, 4th Corps continued to engage in the CambodianâÂÂVietnamese War, the corps was awarded the title Hero of the People's Armed Forces (Anh hùng Lá»±c lðợng và © trang nhân dân) in 1980.
On 13 September 2024, the plan to merge the 3rd and 4th Corps to form the 34th Corps was announced in the 3rd Corps Emulation Congress. The corps was disbanded on 7 December 2024 to form the 34th Corps.
Right before disband, the Vietnam Ministry of Defense announced the decision to transfer 7th Division, 309th Division, 4th Military Hospital, 550th Engineer Brigade to 7th Military Region, 22nd Tank Brigade to the Armor-Tank Arms; River Crossing Battalion of 550th Engineer Brigade to the Engineer Arms.