what was a direct response to the U.S. invasion of Cambodia in 1970?

One direct response to the U.S. invasion of Cambodia in 1970 was the Kent State shootings on May 4, 1970. Four students were killed and nine others were injured when National Guard troops fired on a crowd of protesters demonstrating against the invasion on the campus of Kent State University in Ohio. This incident further fueled anti-war sentiment and protests across the United States.