This sentence is meaningless. The experience of the Vietnam War in the United States tells us that the concept of "winning only by missiles" will not work. Although radar and electronic technology are developed, the possibility of close combat is inevitable. After all, in air combat, planes fly at supersonic speed. According to the range of the medium-range missile 100 km, the two planes will meet in a few minutes. Air combat is inevitable at this time. Otherwise, the United States would not keep guns and hang them in the pods of air superiority fighters such as F22 and F35A.
The recent war in Syria shows that the efficiency of ground air defense is not as good as that of aircraft air defense, and ground radar and missiles are more easily interfered. Syria has not shot down an Israeli plane so far, but it has intercepted a large number of false targets and destroyed a large number of air defense facilities.