Matilda II
The Infantry Tank Mark II, better known as the Matilda, is a British infantry tank of the Second World War. The design began as the A12 specification in 1936, as a gun-armed counterpart to the first British infantry tank, the machine gun armed, two-man A11 Infantry Tank Mark I. The Mark I was also known as Matilda, and the larger A12 was initially known as the Matilda II or Matilda senior.