The British and the French eventually secretly created armored vehicles to overcome this deadlock. These are the first few tanks to face the test of fire in live combat. Read more: The 10 Most ...

The completed vehicle was running by the end of 1915 but by then a new design was under construction and this would become the prototype for all British heavy tanks in the First World War.

The completed vehicle was running by the end of 1915 but by then a new design was under construction and this would become the prototype for all British heavy tanks in the First World War.