Hong Kong has marked the first Chinese National Security Day since sweeping national security laws were introduced, which the Chinese government dedicated to promote the nation to defend against foreign threats.

China expanded the definition for national security that goes beyond defense against military or terror attacks.

Steve Tsang, director of the SOAS China Institute in London, said while national security in democracies stands for the security of a country against external threats. China’s apparatus targets all external and internal threats. 

A student born in 1999, who was accused of writing for Western media and setting up a website that spread “political rumors.” Two mainland Chinese students in Hong Kong were also put under national security investigations for participating in the city’s 2019 protest movement.