The document summarizes the Vietnam War memorial and the anti-war movement in the United States during the 1960s-1970s. Protests against the war were widespread on college campuses and in Washington D.C. Television broadcasts of the violence and suffering from the war strengthened the anti-war movement. Despite a protest ban, thousands of students demonstrated at Kent State University in 1969 where National Guard soldiers fired on the crowd, killing 4 students. The last American soldiers left Vietnam in 1973 after over 57,000 US soldiers had died in the war. Many veterans still suffer from physical and psychological impacts of the war. Famous singers like John Lennon and Yoko Ono also publicly opposed the war.