Nixon explains the incursion to a skeptical American population.
President Nixon’s decision to invade neutral Cambodia was a massive strategic gamble intended to destroy Vietcong supply sanctuaries, storage depots located where the U.S. previously could not reach them. When you look closely, this move was a political disaster. While Nixon had promised "Vietnamization" and a winding down of the war, this appeared to the public to be a massive and illegal escalation, especially since people were expecting a withdrawal soon. It didn’t just spark intense protests at home, it destabilized Cambodia’s government, creating a power vacuum that allowed the Khmer Rouge to seize power--one of the most genocidal regimes in human history. It proved that in the Vietnam War, every attempt to shorten the conflict through force only seemed to make the human toll worse.
American soldiers cross the border, bringing the war into neutral territory.
The invasion sparked the largest student strikes in U.S. history.