In the circumstances of modern war, the destructive power of air attack weapons has increased to a large extent and the tactical methods have developed for their use, which has led to the consideration of air defense as one of the basic elements in the defense of any country. It usually protects industrial and economic areas, political and administrative centers, areas of massing ground, air, and naval forces, and other vital targets and military instrumentalities in the field during the advance and offensive, to protect them from air threats.