25th Division (South Vietnam)

25th Division (South Vietnam)
Unit name	25th Division (South Vietnam)
Native name	Quân Đoàn 25?
Dates	1960s–1975
Country	South Vietnam
Branch	Army of the Republic of Vietnam
Type	Infantry
Size	Division
Garrison	Cần Thơ (provincial headquarters)
Battles	Vietnam War, Tet Offensive, Easter Offensive

25th Division (South Vietnam) was a formation of the Army of the Republic of Vietnam active during the Vietnam War era, operating primarily in the Mekong Delta and IV Corps Tactical Zone. The division participated in counterinsurgency operations, conventional battles, riverine actions, and pacification programs across provinces such as Mekong Delta, Cần Thơ, Mỹ Tho, and Vĩnh Long. It fought against forces of the People's Army of Vietnam, Viet Cong, and coordinated with elements of the United States Army, United States Navy, United States Air Force, and Army of the Republic of Vietnam Special Forces.

Formation and Organization

Formed amid expansion of the Army of the Republic of Vietnam during the early 1960s, the division's lineage intersected with reorganization plans tied to Military Assistance Command, Vietnam guidance, Programs 3 and 4 restructuring, and IV Corps area boundaries. Its organic structure mirrored conventional divisions with three infantry regiments, support units, and artillery, influenced by doctrine from MACV advisors, United States Army Training and Doctrine Command practices, and experiences from units like the 9th Infantry Division (United States) and 1st Division (South Vietnam). The division headquarters coordinated with provincial civil institutions including Can Tho Province, Kien Giang Province, and Tien Giang Province for territorial defense and coordination with Civil Operations and Revolutionary Development Support programs.

Operational History

Throughout the 1960s and early 1970s the division undertook combined operations, counterinsurgency sweeps, and conventional defenses against People's Army of Vietnam infiltration down the Mekong River, engaging in operations alongside Mobile Riverine Force, SEAL teams, and Army of the Republic of Vietnam Airborne Division elements. During the Tet Offensive the division defended urban centers such as Cần Thơ and intervened in attacks on provincial capitals, coordinating artillery support from units trained by United States Army Artillery School advisors and close air support from Tactical Air Command aircraft and Republic of Vietnam Air Force sorties. In 1972 during the Easter Offensive and subsequent campaigns the division faced pressure from conventional PAVN units, necessitating coordination with armored units like the ARVN Armored Cavalry and logistical resupply via Mekong Delta riverine logistics nodes and U.S. Seventh Fleet naval gunfire in coastal sectors.

Major Engagements and Battles

The division saw major actions during counteroffensives and set-piece battles including clashes associated with the Tet Offensive, operations around Ap Bac-influenced tactics, riverine engagements near My Tho, and defensive battles in Vinh Long and Can Tho. It engaged against regiments of the People's Army of Vietnam such as elements of the 9th PAVN Division and local Viet Cong Main Force battalions during notable operations coordinated with Operation Coronado, Operation Mobile River, and other combined actions supported by the U.S. Navy Riverine Force. The division also participated in response operations tied to national events including coordination with President Nguyễn Văn Thiệu's strategic directives and provincial pacification efforts linked to Civilian Irregular Defense Group initiatives.

Commanders and Leadership

Division leadership comprised senior ARVN officers who coordinated with MACV advisors, regional corps commanders in IV Corps, and provincial chiefs of Cần Thơ Province. Notable ARVN commanders and staff officers rotated through divisional command; they liaised with commanders from allied units including U.S. Military Assistance Command, Vietnam generals, Rear Admiral U.S. Navy riverine commanders, and leaders of the Republic of Vietnam Navy for coastal defense. Command relationships tied into national command authorities such as the Joint General Staff (South Vietnam) and political leadership in Saigon.

Equipment and Order of Battle

The division's equipment mix reflected ARVN standard issue and U.S. matériel transfers, fielding small arms like M16 rifle, crew-served weapons including M60 machine gun, and anti-armor weapons such as the M72 LAW. Artillery assets included towed pieces like the M101 105 mm howitzer and medium guns influenced by U.S. Army Field Artillery School doctrine; armored support came from vehicles such as M113 armored personnel carrier and light armored vehicles supplied under Military Assistance Program packages. Riverine operations used craft influenced by designs from PBR concepts and logistical craft tied to Mekong Delta waterways. Aviation support included liaison and attack from helicopters similar to Bell UH-1 Iroquois and fixed-wing close air support from A-1 Skyraider types operated in coordination with the Republic of Vietnam Air Force and U.S. Air Force.

Disbandment and Legacy

Following the collapse of ARVN defenses and the Ho Chi Minh Campaign culminating in 1975, the division ceased to exist as national structures dissolved and Fall of Saigon events concluded the Republic of Vietnam. Veterans and communities tied to the division dispersed amid postwar restructuring under Socialist Republic of Vietnam governance; its operational record remains part of studies in counterinsurgency, riverine warfare, and ARVN performance documented in analyses by Vietnam War scholars and institutions such as military history centers in United States Military Academy, Naval War College, and Vietnamese archives. The division's campaigns influenced later discussions of asymmetric warfare, joint operations among forces like the U.S. Army, U.S. Navy, and allied regional forces, and are referenced in historical overviews of the Vietnam War.

Category:Army of the Republic of Vietnam divisions