Thousands of people have taken to the streets in central Hong Kong, in what is said to be a crucial day for the pro-democracy protesters. Although China has threatened to send armed forces, Chatham House's Rod Wye says the costs of such an intervention "at the moment are too high."

A Hong Kong military intervention would "seriously damage" Beijing

Thousands of people have taken to the streets in central Hong Kong, in what is said to be a crucial day for the pro-democracy protesters. Although China has threatened to send armed forces, Chatham House's Rod Wye says the costs of such an intervention "at the moment are too high."