- The massive Draft of U.S Soldiers to Cambodia, this provoked massive protest on campuses around the Country
- The Kent State Incident, where Guardsmen opened fire to the protester and killed 4 students and wounded 9 of them
The u.s. was fighting in Vietnam but they were also facing huge protest back on the continental u.s. about the Vietnam war, among other things
The red scare following the World War I was primarily caused by the fear of communism, socialism, anarchists, immigrants, and racial labor that has been developing and growing in the industrialized nations, especially in the United States, during the 1920s.
Inspiring fear in citizens by killing his political opponents