当前世界环境

保护领土完整,防止from the attacks of enemies is the only common goal of all states and people of the countries on the earth. Passive defense which is mentioned abundantly today is one of the most important options in preserving this integrity. Passive defense is one of the special topics not only in Iran but also in many countries of the world because all efforts of a state are targeted at securing consent and welfare for its nation and preserving the national resources to produce income. Such incomes play substantial roles in creating substructures and superstructures. That is why preserving security and preventing from internal and international hazards is one of the basic programs of governments. Also spatial distribution of elements, combination of elements and main functions of the city which constitute to the structure of city are effective in the degree of vulnerability of a city against various dangers particularly military attacks. On this basis, the form and shape of the city entails a special attitude from passive defense perspective. Therefore, in the present research it has been attempted to introduce passive defense, define its theoretical fundamentals and application of this defense system in preserving and protecting the countries, and particularly their important and vital elements, express strategies for internalize passive defense in urban planning. Using this method may help save the cities against the crisis in critical situations through a coordinated and organized management process. Research method in this article is a combination of descriptive- explanatory and comparative methods; descriptive method has been used based on the information available in library deeds and documents.