Final answer:
The Tet Offensive was a military defeat for the Viet Cong, but a political victory that led to increased opposition to the war at home.
Step-by-step explanation:
The Tet Offensive of 1968 was a military defeat for the Viet Cong, but it was considered a political victory, as it caused increased opposition to the war at home. Although the Viet Cong suffered significant losses during the offensive, the attack demonstrated the failure of the US military's claims that the Viet Cong had been largely eliminated. Television coverage showing the brutality of the war and South Vietnamese leaders executing prisoners led many Americans to call for the withdrawal of US troops. This event played a crucial role in changing public opinion and eventually led to President Johnson's decision to try to end the war.