Tibet: The Story Of A Tragedy

In 1950, China peacefully liberated the shit out of Tibet, ending roughly 1400 years of independence. Temples and monestaries destroyed, forced labour camps were set up, one million people were killed, one sixth of the total population, agriculture was ruined, leading to mass famines. The hammer of communism came down and by the time it was finished Tibet was thoroughly drenched in blood.

Here is a nice French documentary about the history of the West's interaction with Tibet and China's invasion (it's in English).