Tet Offensive

The Tet Offensive was a massive military campaign during the Vietnam War. It was a major escalation that changed the course of the conflict. The offensive involved the North Vietnamese People's Army of Vietnam (PAVN) and the Viet Cong (VC). They launched surprise attacks against the South Vietnamese Army (ARVN) and United States forces. These attacks targeted military and civilian command centers across South Vietnam.

The name comes from the Vietnamese Lunar New Year, or Tết Nguyên Đán. This holiday is a time when many South Vietnamese soldiers go on leave. This timing allowed the North to strike when defenses were lower.

Historians debate the specific goals of the North Vietnamese leaders. Some experts, like William Westmoreland, suggest the political impact was an intended consequence. This view argues the North wanted to change American opinion. However, other historians believe the goal was more immediate. They argue the North wanted to topple the Saigon government. They hoped to destroy the government apparatus or install a coalition government. Captured documents from the Viet Cong support this second idea.

The offensive began in stages. On January 30 and 31, 1968, the attacks were launched. The operation started in parts of the I and II Corps Tactical Zones. By January 31, the offensive became countrywide. Approximately 77,000 PAVN and VC troops struck more than 100 towns and cities. This included 36 of 44 provincial capitals and 72 of 245 district towns. The forces also attacked the capital city, Saigon. This was the largest military operation conducted by either side up to that point in the war.

The fighting was extremely intense in specific locations. In the city of Huế, combat lasted for a full month. This battle resulted in the total destruction of the city. During the occupation of Huế, thousands of people were killed in what is known as the Massacre at Huế. In other areas, such as the Khe Sanh combat base, fighting continued for two months. While the North intended to trigger a popular uprising, this never actually happened. No mass defections from the South Vietnamese military occurred.

Despite the lack of an uprising, the offensive had huge consequences. It was a military defeat for North Vietnam, but a political turning point. Before the attacks, American leaders had suggested the North was being defeated. They believed the North was incapable of such a large operation. The scale of the Tet Offensive shocked the American public. This shock caused public support for the war to decline rapidly. As a result, the Johnson administration began seeking negotiations to end the war.

Before the offensive, the United States followed a strategy of attrition. General William Westmoreland believed the U.S. could win by reaching a "crossover point." This meant killing or capturing more communist troops than they could replace. However, there were disagreements about how many enemy troops actually existed. The CIA estimated there could be 430,000 guerrillas in the South. The Military Assistance Command, Vietnam (MACV) estimated the number was no more than 300,000. These intelligence differences made it difficult for the government to gauge true success.

The term "Tet Offensive" can refer to different periods. It usually describes the January and February attacks of 1968. However, some historians extend the term to include 21 weeks of intense combat. This includes the "Mini-Tet" offensive in May and the Phase III offensive in August. The conflict remained a central part of the war throughout 1968. It demonstrated the difficulty of the war and the complex relationship between military action and public opinion.