The Tet Offensive of January 1968 involved coordinated attacks by the North Vietnamese and Viet Cong in South Vietnamese cities. It is widely viewed as a major setback for which entity?

• A. The United States
• B. Johnson administration
• C. The Soviet Union
• D. The Viet Cong

Answer: (B)

The key idea is how public legitimacy and political will shape wartime strategy, sometimes as much as battlefield outcomes. The Tet Offensive showed that even though American and South Vietnamese forces could push back the attacks, the scale and surprise of the offensive shattered the impression that the war was swiftly trending toward a victory. For the Johnson administration, the protests, media coverage, and growing antiwar sentiment at home made the war look unwinnable or far from over, despite on-the-ground military gains. That blow to credibility constrained what the administration could realistically promise or pursue and helped push U.S. policy toward de-escalation and negotiation. In that sense, Tet is widely viewed as a major setback for the Johnson administration, not because of a decisive military defeat, but because it damaged the leadership’s legitimacy and the political will behind the war.