Deterrence, in particular reciprocal nuclear deterrence, was once an important pillar of maintaining peace and security during the Cold War. Deterrence theory was formed alongside nuclear terrorism, and a central topic in early research on deterrence theory was nuclear deterrence. But deterrence as a practice has long existed in the extensive history of human society. The world is, as a whole, an amalgamation of conflicts. In comparison with agrarian civilizations, the greatest characteristic of maritime civilizations is its direct confrontation of differences, willingness to engage in conflict and not intentionally manufactured unity and harmony. For a power such as China, strategic deterrence is strong and unassailable. The outstanding historical achievements of Chinese People’s Liberation Army in wars against foreign forces and the three-in-one integrated strategic nuclear strike capabilities of land, sea and air are sufficient to deter any potential large-scale wars targeting China.