MIM-3 Nike-Ajax

The Nike Ajax was an American guided surface-to-air missile (SAM) developed by Bell Labs for the United States Army. The world's first operational guided surface-to-air missile, the Nike Ajax was designed to attack conventional bomber aircraft flying at high subsonic speeds and altitudes above 50,000 feet (15 km). Nike entered service in 1954 and was initially deployed within the United States to defend against Soviet bomber attacks, though it was later deployed overseas to protect US military bases, and was also sold to various allied militaries. Some examples remained in use until the 1970s.
Originally known simply as "Nike", it gained the "Ajax" as part of a 1956 renaming effort that resulted from the introduction of the similarly named Nike Hercules. It was initially given the identifier SAM-A-7 (Surface-to-air, Army, design 7) as part of an early tri-service identification system, but later changed to MIM-3 in 1962.
Technological development during the 1950s quickly rendered the MIM-3 obsolete. It was unable to defend against more capable bombers or multiple targets in formation, and had relatively short range. Even while Nike was being deployed, these concerns led to the contracts...