Churchill famously said, "We have no eternal friends or enemies, only eternal interests." This statement is correct. National defense is directly related to national security, national dignity and social development. Modern national defense, also known as social national defense, great national defense and national defense, is a huge and complex system, including armed construction, national defense system, military science and technology and industry, national defense engineering, military transportation and communication, manpower mobilization, national defense education and national defense laws and regulations.
From the supreme head of state to every citizen, from military to politics, economy, culture, education, science and technology and ideology are closely related to it. Modern national defense takes military forces as the core, including related non-military forces; It attaches importance to the war potential of the country, especially the mobilization efficiency in wartime; It is also a competition of comprehensive national strength based on economy and science and technology. The modern army is an armed group with intensive knowledge and technology, and it emphasizes quality over "sea tactics". The role of national defense in peacetime is deterrence, which requires winning without fighting; The duty of national defense in wartime is actual combat, and the goal is victory.
1, the subject of national defense: the state.
2. Purpose of national defense: to defend national sovereignty, unity, security and territorial integrity.
3. Means of national defense: military, political, economic and diplomatic. National Defense Service Seal of Chinese People's Armed Police Force
4. The object of national defense: aggression and armed subversion.