The term 'Guided Missile' refers to a type of missile that is guided by some form of remote control or onboard guidance system. The three crossword solutions for this term are Nike, Thor, and TITAN. Nike was the first operational surface-to-air missile system developed by the United States in the 1950s. Thor was a British intermediate-range ballistic missile developed in the late 1950s and early 1960s. TITAN was an American family of intercontinental ballistic missiles developed in the late 1950s and early 1960s.