The original Panzer was designed and built in Germany in the 1930’s.
The Panza was put to battle in the Spanish Civil War form 1936 to 1929.
During the German Army invasion of Austria in 1938 the Germans experienced a high ratio of mechanical failure almost a third of the Panza tanks experienced mechanical breakdown.
Although the Panzer 1 was fairly limited with light Amour it was not as advanced as others yet it played a major part in early victories for the Germans.
Germany invaded Poland on September the 1st 1939 The Germans lost over a third of the German Armoured tank division due to being destroyed or mechanical failure.