The British Sten gun was a hastily created 9mm sub-machine gun that went into production shortly after the catastrophic retreat from Dunkirk when it was widely believed that the invasion of England was inevitable. The British Home Guard requested an easily produced sub-machine gun that could be quickly assembled and easily used by those who have never had any firearm training whatever. Dubbed "the ten-dollar gun", the Sten gun met all these requirements and more; over four million of them were manufactured throughout the Forties and although they were never used to defend the British Isles, they were parachuted en masse to the partisan armies in Europe.
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