First used by the British Army, who initially built them in secret during World War One. To keep the enemy from finding out about this new solution, the public were informed that these vehicles were large water carriers or tanks, and the name "TANK" stuck.
In World War I British and French tanks proved decisive in winning the war and its value as a combat weapon had been clearly proven.
World War Two
The Germans were the first to grasp that tanks had changed the nature of war. They concentrated their tanks into large groups, the Panzer Division, the world's first armored unit. These units were able to blitz their way through the Allied Armies and then surround and destroy them from behind.
Blitzkrieg (Lightning War)
Blitzkrieg was first used by the Germans in WWII and was a tactic based on speed, surprise and the need for a military force to be based around light tank units supported by aircraft and infantry. This grew to become the awesome Panzer Forces of the Third Reich. Tanks were the spearhead of the Blitzkrieg attack, the tooth and claws of Germany?s war machine.
All countries involved in the war were producing their own models of tanks to combat the opposing force. The comparison of WW2 tank designs is an absolutely fascinating segment of our world history.