China has one of the world’s most sophisticated internet censorship systems - it’s so extensive that it’s been nicknamed ‘The Great Firewall of China’. Many Western websites, such as Google or WhatsApp, are shut off to Chinese Internet users, while Chinese equivalents like Baidu and WeChat are popular instead. Blockbuster films like Top Gun Maverick have been edited, celebrities like Lady Gaga are taboo and even Peppa Pig has been censored.

So, what is the Chinese government trying to achieve with internet censorship? And in an increasingly globalised world, how are they managing to filter out the information they don’t want people to know? Shawn Yuan from the BBC’s Global China Unit explains how the ‘Great Firewall’ works - and what it tells us about the relationship between the government and citizens in China.

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