Answer:
China's relationship with Tibet can best be described as oppresive.
Explanation:
Since the invasion of Tibet in 1950 there has been a debate about the status of Tibet.
According to the Chinese government, Tibet had been part of China's sovereignty for hundreds of years and was a "rebellious province" between 1913 and 1950, until the Mao Zedong People's Liberation Army "liberated it with the invasion of Tibet in 1950-51."
According to the Tibetan exile government, Tibet has always been an independent country. It was never a vassal state of China. From 1895 the thirteenth Dalai Lama ruled Tibet and from the beginning of his government he regarded Tibet as an independent country. It is also pointed out that the offices of the various countries in Lhasa from before 1951 were, in practice, embassies where non-Tibetans, including a small number of Chinese visitors, were issued residence documents. These facts are denied by the current Chinese government.
When the Xinhai revolution heralded the fall of the Qing Dynasty and thus the Chinese Empire, the fled 13th Dalai Lama Thubten Gyatso returned to Tibet, exiled all Chinese and declared independence in February 1913. He strengthened this by signing the Urga Treaty with Mongolia in the same month, in which they recognized each other as independent states. For some scientists, this is the time when Tibet became de facto independent of China; but it seems unlikely that the weak Manchuan regime, which Tibet never actually occupied nor levied taxes, should be seen as a serious precursor to the current Chinese rulers, so that from 1353 Tibet could de facto be considered an independent state. In any case, Thubten Gyatso now imported Tibetan currencies, a flag of Tibet, and Tibetan postal services.