The Tank, Cruiser, Mk V, Covenanter (A13 Mk III) was a British Cruiser tank of the Second World War. It was named for the Covenanters, a Scottish religious faction in the British Isles at the time of the Wars of the Three Kingdoms. The Covenanter was the first cruiser tank design to be given a name. Designed by London, Midland and Scottish Railway as a better armoured replacement for the Cruiser Mark IV, it was ordered into production in 1939 before pilot models were built. Problems with the design only became apparent after production was under way.