Intent on disrupting North Vietnamese supply lines, Henry Kissinger and Richard Nixon authorized the secret bombing and invasion of neighboring Cambodia in 1969. The campaign set off a series of events that destabilized the nation—and paved the way for the Khmer Rouge's rise to power. #KissingerPBS premieres October 27 & 28 at 9/8c on PBS, YouTube, and the PBS app. | American Experience | PBS