2. [Short answer] When was the single traditional concept of national security?

In ancient China, a single traditional concept of national security appeared.

The traditional concept of national security understands national security as political security and national defense security. Under the new situation, we must establish a brand-new concept of national security, that is, national security should include economic security, scientific and technological security, cultural security, ecological security and social security in addition to traditional political security and national defense security.