Radar, which is an acronym for radio detection and ranging, has a history that dates all the way back to the early part of the 20th century. Radar technology was originally developed for military services and was later utilized in combat in World War II. Since its early days, radar technology has significantly changed. Today, radar is used not only for military applications, but also for many civilian applications.
As stated, radar technology was originally developed for military purposes. Today, military services still represent the main area of usage for radar technology, as military applications on land, in the air, and at sea rely on radar. Among these applications are threat detection, missile guidance, air and marine navigation, and more.