The 1970 bombing of Cambodia was seen by many Americans as an escalation of the Vietnam War. Option D is correct.
After certain events experienced in Cambodia in 1970, President Nixon took action to attack North Vietnamese Headquarters and Bases inside Cambodia with Air and Ground Forces.
Anti-war protests took place on college campuses in the U.S. The Kent State and Jackson State University Shootings happened as Police and National Guard shot at protesters while trying to quell the protests. Various students were murdered and many other wounded by the gunfire.
