The performance of the Army of the Republic of Vietnam (ARVN) at the Battle of Ap Bac, January 2, 1963, established a narrative that the South Vietnamese were unwilling to fight or lacked aggressiveness. At the time of the Battle of Ap Bac, the South Vietnamese had been receiving direct military aid from the US and under the tutelage of American advisors for over eight years. Lieutenant Colonel John Paul Vann was the senior US Army advisor present and remarked after the battle, “It was a miserable damn performance, just like it always is. These people won’t listen. They make the same mistake over and over again in the same way.” In the context of those comments, ARVN did not show an appreciable increase in combat effectiveness with years of direct American support. The larger narrative surrounding the battle indicates that the performance of ARVN was a harbinger for future challenges and setbacks in South Vietnam. This battle and subsequent evaluation of the ARVN attribute the cause for combat ineffectiveness was the South Vietnamese lacking leadership and not possessing the necessary fighting spirit. Is the evaluation that the outcome of the Battle of Ap Bac hinged on the ARVN’s lack of aggressiveness still valid when put in the broader cultural, social, and political context that existed at its birth?

This is the first of a series of chronological histories prepared by the Marine Corps History and Museums Division to cover the entire span of Marine Corps involvement in the Vietnam conflict. This particular volume covers a relatively obscure chapter in U.S. Marine Corps history—the activities of Marines in Vietnam between 1954 and 1964. The narrative traces the evolution of those activities from a one-man advisory operation at the conclusion of the French-Indochina War in 1954 to the advisory and combat support activities of some 700 Marines at the end of 1964. As the introductory volume for the series this account has an important secondary objective: to establish a geographical, political, and military foundation upon which the subsequent histories can be developed.

On January 2, 1963, the South Vietnamese Army (ARVN) and its American advisors were soundly defeated by Viet Cong guerrilla forces at Ap Bac. The loss should have caused U.S. policy makers to question the value of their efforts to train and equip the ARVN troops, but they failed to perceive the battle's significance. In this book, a longtime U.S. Army officer and history professor at West Point provides the most comprehensive treatment of the battle in print. David Toczek not only analyzes the operation in detail but places it in the larger context of the war to better evaluate the meaning of what happened. He shows that U.S. civilian and military leadership missed an opportunity early on to learn from their mistakes when they failed to draw any connection between the ARVN's dismal performance at Ap Bac and American policies toward South Vietnam. Toczek notes that while a few tactical changes resulted from the battle, no policy changes were made, not even to the structure of the advisory system. The author also takes a look at the actions of John Paul Vann, the outspoken U.S. Army advisor at Ap Bac that Neil Sheehan wrote about in his Pulitzer Prize-winning book A Bright Shining Lie. Such a careful examination of a battle seen as a metaphor of the entire Vietnam War will prove useful to readers today eager to avoid the pitfalls of the past as they consider how best to fight insurgents of the 21st century.

This is the second volume in a series of chronological histories prepared by the Marine Corps History and Museums Division to cover the entire span of Marine Corps involvement in the Vietnam War. This volume details the Marine activities during 1965, the year the war escalated and major American combat units were committed to the conflict. The narrative traces the landing of the nearly 5,000-man 9th Marine Expeditionary Brigade and its transformation into the ΙII Marine Amphibious Force, which by the end of the year contained over 38,000 Marines. During this period, the Marines established three enclaves in South Vietnam’s northernmost corps area, I Corps, and their mission expanded from defense of the Da Nang Airbase to a balanced strategy involving base defense, offensive operations, and pacification. This volume continues to treat the activities of Marine advisors to the South Vietnamese armed forces but in less detail than its predecessor volume, U.S. Marines in Vietnam, 1954-1964; The Advisory and Combat Assistance Era.

This work describes riverine combat during the Vietnam War, emphasizing the operations of the U.S. Navy’s River Patrol Force, which conducted Operation Game Warden; the U.S. Army-Navy Mobile Riverine Force, the formation that General William Westmoreland said “saved the Mekong Delta” during the Tet Offensive of 1968; and the Vietnam Navy. An important section details the SEALORDS combined campaign, a determined effort by U.S. Navy, South Vietnamese Navy, and allied ground forces to cut enemy supply lines from Cambodia and disrupt operations at base areas deep in the delta. The author also covers details on the combat vessels, helicopters, weapons, and equipment employed in the Mekong Delta as well as the Vietnamese combatants (on both sides) and American troops who fought to secure Vietnam’s waterways. Special features focus on the ubiquitous river patrol boats (PBRs) and the Swift boats (PCFs), river warfare training, Vice Admiral Elmo R. Zumwalt Jr., the Black Ponies aircraft squadron, and Navy SEALs. This publication may be of interest to history scholars, veterans, students in advanced placement history classes, and military enthusiasts given the continuing impact of riverine warfare on U.S. naval and military operations in the 21st century. Special Publicity Tie-In: Commemoration of the 50th anniversary of the Vietnam War (Commemoration dates: 28 May 2012 - 11 November 2025). This is the fifth book in the series, "The U.S. Navy and the Vietnam War." TABLE OF CONTENTS Introduction The First Indochina War The Vietnam Navy River Force and American Advisors The U.S. Navy and the Rivers of Vietnam SEALORDS The End of the Line for U.S. and Vietnamese River Forces Sidebars: The PBR Riverine Warfare Training Battle Fleet of the Mekong Delta High Drama in the Delta Vice Admiral Elmo R. Zumwalt Jr. Black Ponies The Swift Boat Warriors with Green Faces Suggested Reading

With the withdrawal of French forces from South Vietnam in 1955, the U.S. took an ever-widening role in defending the country against invasion by North Vietnam. By 1965, the U.S. had "Americanized" the war, relegating the Army of the Republic of Vietnam (ARVN) to a supporting role. While the U.S. won many tactical victories, it had difficulty controlling the territory it fought for. As the war grew increasingly unpopular with the American public, the North Vietnamese launched two large-scale invasions in 1968 and 1972--both tactical defeats but strategic victories for the North that precipitated the U.S. policy of "Vietnamization," the drawdown of American forces that left the ARVN to fight alone. This book examines the maturation of the ARVN, and the major battles it fought from 1963 to its demise in 1975. Despite its flaws, the ARVN was a well-organized and disciplined force with an independent spirit and contributed enormously to the war effort. Had the U.S. "Vietnamized" the war earlier, it might have been won in 1967-1968.