Developed just before the outbreak of WWII, the A20 heavy tank was initially designed by the British with trench warfare in mind. The tank was hastily redesigned to adapt to the new mobile form of warfare and later became the basis of the Churchill tank.
https://s3-us-west-1.amazonaws.com/h...k_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...658#post186200
https://www.homemadetools.net/forum/...975#post156911
https://www.homemadetools.net/forum/...397#post142549
https://www.homemadetools.net/forum/...289#post130999
https://www.homemadetools.net/forum/...9694#post89851