China has enacted a revision to the National Defence Law that adds outer space and cyberspace to areas of military activities.
The revised law was enacted at a National People's Congress meeting that closed on Saturday. It is the first revision to the National Defence Law in 11 years.
Under the revision, China regards outer space and cyberspace as important security realms where military activities could take place.
The revised law also says that China may mobilize its military power if the country's "development interests," in addition to its sovereignty and territorial integrity, are threatened.
There was no explanation of what development interests mean but they're widely regarded as economic activities overseas.
Beijing has been increasingly at odds with Washington in the technology sector. Observers say the revision is intended to help strengthen China's military institution and to give legal justification for military activities in the event of an emergency.