Which military product innovation, first widely deployed in World War I, transformed battlefield mobility and strategy, leading to the development of an entirely new combat doctrine?

Throughout history, military technological innovations have dramatically shifted the balance of power on battlefields. From ancient weapons to modern combat systems, certain products have revolutionized warfare tactics and strategy. This poll tests your knowledge about one of the most significant innovations that transformed modern combat operations and influenced military procurement strategies worldwide. Do you know which product breakthrough helped reshape military doctrine in the 20th century?

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The tank (armored fighting vehicle)
The military aircraft carrier
The submarine with torpedo capabilities
The portable radio communication system