
(from the article `tank`) ...But the heavy M103 tank, armed with a 120-millimetre gun, was only built in small numbers in the early 1950s. As a result, virtually the only ...
Found on
http://www.britannica.com/eb/a-z/m/1

The M48 (Chapparal) is an American forward area air-defence missile system. It launches surface-to-air missiles which use infrared homing to target heat emitter guidance. The missiles fly at a speed of mach 2.5 to a ceiling of 2,500 metres and a range of 4,800 metres.
Found on
http://www.probertencyclopaedia.com/browse/FYM.HTM

Main battle tank [US]
Found on
https://www.encyclo.co.uk/local/20785
No exact match found.