Abstract
It is understood to all national states that national security system serves as an essential role in security mechanism. Both United State and China have confronted security challenges from home and abroad. As for the US, since the founding of the country and especially after US has engaged in global affairs, with the shift of national security and security realities, the security constitutional system has undergone several major adjustments. The National Security Act, which was passed by congress in 1947, has created a new organ named National Security Council to integrate the Defense and Intelligence Agencies and build a new security constitution system. After the 9/11 incident, the US congress passed the PATRIOT Act, which has greatly expanded the security powers of the President. With regards to China, China has a long history of safeguarding its territorial integrity, so it is obvious that China focuses more on traditional threats since 1949. After its reform and opening-up policy, the international environment has become more complex and the protection of non-traditional security has become more prominent. Since China has entered a new era in 21st century, various laws and regulations targeting the traditional and non-traditional threat has been enacted. From a historic perspective and comparative approach, this paper finds that China is learning the practices and legislation experiences from countries like United states to actively build a legal system for national security and form a more efficient and integrated security mechanism. in addition, a security constitutional system with the core of overall national security concept is beginning to take shape. China is building a comprehensive security system to address both traditional and non-traditional national threats.
Highlights
The national security system is an important part of the entire national system
[9] This shows that the change of American security constitutional system still faces many legal dilemmas
The change of security constitutional system is the system change that all countries make to realize the concept of national
Summary
The national security system is an important part of the entire national system. It is a set of complete organizational structure, corresponding system and operation process formed or established by sovereign states to maintain their relative stability, integrity and freedom from threats, fears and encroachment. The security systems of all countries in the world have undergone a major transition from emphasizing "national military security" to focusing on "overall national security". "cultural security" and other "non-traditional security" issues have become increasingly prominent, and the reconstruction of security constitutional system has become an urgent issue facing all countries. We can refer to the changing process of the security constitution of the United States, and describe the basic process and plans of China's reform of the security constitution system
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