The bombing of Cambodia was a series of secret bombings authorized by President Richard Nixon. President Nixon targeted Cambodia because he believed that North Vietnam was transporting troops and supplies through there. There is no official death toll for the bombings, but experts estimate that about 100,000 Cambodians lost their lives and an additional 2 million people became homeless. Nixon eventually stationed troops in Cambodia to protect the United States withdraw from Vietnam. This convinced the Cambodians to overthrow their government and became a communist government.
On May 4, 1970, a protest was taking place at Kent State University over the Vietnam War and the bombings on Cambodia. When they clashed with the Ohio National Guard, things got ugly. The guards opened fire on the protestors, killing four students and injuring nine. The guards shot 67 rounds in 13 seconds. People that were protesting were doing a peaceful protest. They were burning draft cards and moving to other countries to avoid the draft. Also, they were staying enrolled in college to stay out of the draft. The Kent State protests turned violent leading people to throw bottles and rocks at officers.