Which of the following battles was pivotal for the United States' presence in Vietnam?

The Battle of Khe Sanh was significant for the United States’ military involvement in Vietnam due to its strategic implications and the public perception it generated. Occurring in early 1968, this battle was part of the larger Tet Offensive, which marked a crucial turning point in U.S. strategy and public opinion regarding the Vietnam War.

Khe Sanh was a remote U.S. Marine Corps base located near the border with North Vietnam, and its siege lasted for several months as North Vietnamese forces attempted to overrun the base. The U.S. response involved intense air support and an extensive ground campaign. The battle was characterized by heavy casualties and was heavily publicized, contributing to a shift in American perspectives about the war. Although the base was eventually reinforced and resupplied, the intensity of combat and the media coverage played a significant role in raising doubts about the war's viability among the American public and policymakers.

In contrast, while the other battles listed were significant in their own right, none had the same level of impact on U.S. involvement and public sentiment as the Battle of Khe Sanh did. The consequences of Khe Sanh and the Tet Offensive brought to light the complexity of the conflict in Vietnam, making it an emblematic