The collective beliefs, attitudes, and sentiments held by individuals within a society regarding a particular issue or topic. In this case, it refers specifically to how Americans as a whole viewed the Vietnam War.
Related terms
Hawks and Doves: Terms used to describe individuals who either supported or opposed US involvement in the Vietnam War.
Silent Majority: A term coined by President Richard Nixon to describe the large group of Americans who were not actively protesting against the war.
Counter Culture: A movement that emerged during the 1960s as a response to mainstream culture, often associated with anti-war sentiments.