What are the country’s land, water, air, bottom, sky, and magnetic domains?

National territory.

The national domain is the national living and development space that integrates the seven domains of land, water, bottom, air, sky, magnetic, and network.

Similarly, when talking about national security issues today, we must not only pay attention to traditional territorial security such as land, airspace, and subsoil, but also pay attention to non-traditional maritime adjacent zones, exclusive economic zones, continental shelves, air defense identification zones, outer space, electromagnetic space, and networks.

For the security of space, it is necessary to establish the non-traditional "national security" concept of "homeland security" in addition to the traditional concepts of "territorial security", and use "national security" to summarize the current most extensive national survival and development space.

Security issues, as of December 13, 2023, include seven aspects: land security, water security, bottom security, air space security, sky security, magnetic security, and network security.