Which military contractor first successfully developed the modern tank (as we know it) for battlefield use in World War I?

Throughout military history, product development has shaped the course of warfare. One of the most significant innovations emerged during World War I, forever changing the dynamics of battle. This development represented a strategic response to the deadlock of trench warfare and would influence military tactics for decades to come. Test your knowledge of this pivotal moment in military product development and its impact on warfare history.

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William Foster & Co. (Lincoln, England)
Renault FT (Paris, France)
Krupp Industries (Essen, Germany)
Holt Manufacturing Company (California, USA)