What were the differences between Nike Ajax, Nike Hercules, and Nike Zeus anti aircraft missiles? Were they different warheads mated to the same basic missile, or completely different missile systems? - Quora
Nike family of missiles: Zeus, Hercules and Ajax | Maxwell Hunter
5.5" NIKE ZEUS – LOC Precision / Public Missiles Ltd.
Nike Zeus - Wikipedia
Nike Zeus Anti-ICBM Missile - YouTube
American anti-aircraft and anti-missile systems of the Nike family