Civil air defense is a comprehensive activity that the state mobilizes and organizes people to take various protective measures to prevent and mitigate the harm of air strikes and preserve the war potential according to the needs of national defense. Civil air defense is an important part of national defense. This is because, first of all, it constitutes the national air defense system together with the national air defense organized by the state to defend territorial integrity and the safety of important targets and the field air defense organized by the army under field conditions; Secondly, civil air defense construction is one of the important contents of national strategic defense, battlefield construction and urban defense, and its preparation is an integral part of the country's overall national defense preparation; Third, the fundamental purpose of civil air defense is to protect people's lives and property and ensure the smooth progress of socialist modernization, which is consistent with the purpose of national defense. Civil air defense is a major event related to national interests and people's survival and safety. If a country is not defended, it will perish. A strong country must be backed by a strong national defense. In old China, many cities in our country were bombed by the Japanese imperialist air force, and people had nowhere to hide and wait for death. In the past eight years, the Japanese Air Force has killed or injured more than 550,000 civilians in our city. In the modern high-tech war, air strikes have become an independent combat style on the historical stage, and the threat China will face in the future will be air strikes by enemies with high-tech advantages. Therefore, we must take civil air defense construction as a major event related to national and national security and pay close attention to it. At the same time, we should pay attention to the material basis of civil air defense construction. In the new historical period, China civil air defense will implement the policy of "long-term preparation, key construction and combination of peacetime and wartime". That is to say, in peacetime, civil air defense construction should be carried out in a planned and step-by-step manner in combination with national economic construction and urban construction, and social and economic benefits should be taken into account while ensuring combat readiness benefits, so as to ensure the smooth progress of socialist modernization. In order to effectively organize civil air defense, it is necessary to formulate a careful air defense plan and various security plans in peacetime; Establish a sound communication alarm and command system; Construction of various supporting civil air defense projects; Establish various professional and well-trained mass air defense organizations; Do a good job in the construction of scheduled evacuation areas for urban population, and create conditions for wartime resettlement of urban evacuated population; Carry out civil air defense education to enable citizens to master air defense knowledge and skills. In wartime, it is necessary to effectively coordinate various departments and personnel, act in a planned and organized manner, accurately and quickly convey air information, issue alarms, and guarantee and execute orders; Organize the evacuation of urban population; Guide the masses to use civil air defense projects and the civil air defense knowledge and skills they have learned to cover and protect; Command all kinds of mass air defense organizations to eliminate the consequences of air strikes in time and maintain social order. Various civil air defense professional organizations also assist flood control and earthquake prevention departments to undertake rescue and disaster relief tasks. Because civil air defense is related to national security, national survival and the safety of people's lives and property, it has always been highly valued by the party and the state. As early as the early days of the founding of the People's Republic of China, the Central People's Government issued the State Council's notice from June 5438+0950 to June 5438+00: "Immediately mobilize urgently, establish civil air defense organizations in all areas and cities that may be attacked, and step up the construction of facilities for civil air defense work." Since then, several national civil air defense conferences have been held, and a series of principles, policies and regulations for civil air defense construction with China characteristics have been formulated and promulgated. 19661On October 29th, the 22nd meeting of the Eighth National People's Congress passed the first People's Republic of China (PRC) Civil Air Defense Law, which came into effect on October 29th. This indicates that China's civil air defense industry has been brought into the legal track and entered a new development period. I hope my answer is helpful to you. . . . .