The Conqueror was the British Army's first successful big gun tank. Designed to take a 120mm gun to enable it to deal at long range with the Soviet JS3, its role was to support the lesser armed Centurion infantry tanks. In this work, Rob Griffin tells the story of the design, development and operational use of the Conqueror. Topics covered include: detailed specifications; the second-line use of the Conqueror; and the fates of all examples. There are photographs and drawings.