The American’s setback in Vietnam War is already tattooed in their history. It triggered shameful criticism both to General William Westmoreland and the US government. Even today, many Americans still ask whether the American effort in Vietnam was a sin, a blunder, an indispensable war, a noble cause, or an idealistic campaign (History Learning Site, 2015). Instrumental to this campaign was American General William C. Westmoreland who engineered the build-up and consolidation of U.S. military forces in South Vietnam. He is considered to be the primary reason why he was not able to win the war in Vietnam as he overestimated the American people’s patience and tolerance of friendly losses. The Vietnam War gives valuable lessons that can be used in the present-day war campaigns. For one, the Vietnam War was based on deception that is the trend today as with the insurgents and terrorist groups. Though U.S. and South Vietnamese forces managed to hold off the Communist attacks, the offensive shocked and demoralized not only their forces but as well as the American public and further eroded support for the war effort. The victory gained by the ‘Tet offensive’ (CNN, 1988) that triggered the deliberate and shameful withdrawal of US forces from the region. Although General Westmoreland was notoriously tagged as the General who lost Vietnam but in reality, it was the North Vietnamese 's determination, deliberate aggressiveness and will power that caused the victory. General William