I want to know the answer to the following question:
The Chinese government established what city in this disputed area?
All the background I'm provided with is that "However to sustain its relationship with China the Vietnamese government has actively sought to head off protests during the torch relay, with Prime Minister Nguyễn Tấn Dũng warning government agencies that "hostile forces" may try to disrupt the torch relay.". Is that enough to answer the question?