Sino-Vietnamese War [Doonesbury]

March 12-17, 1979
...where Ambassador Phred responds to China's invasion of Northern Vietnam

Last we heard from Phred, he had just started a job as a United Nations ambassador for Vietnam. Here, he is responding to the embassador of China's tirade during the Sino-Vietnamese war, a brutal war between the People's Republic of China (PRC) and the Socialist Republic of Vietnam. After Vietnam occupied Cambodia (which belonged to the PRC at the time), PRC's government, the Khmer Rouge, fell. The conflict lasted a little more than one month, and what is curious is that both sides claimed victory.

Read more about the Sino-Vietnamese war on Wikipedia.