With the invasion of Poland, Britain and France declared war on Germany in 1939. However, the situation turned sour when the Allied response ultimately proved feeble against the well-trained, well-equipped forces of the German Army - executing their fabled "blitzkrieg" doctrine to perfection. Within time, the Allies became pockets of a divided fighting force, having retreated either south towards Paris or north towards the coastline at the English Channel. There, at the port city of Dunkirk, the famous extraction of hundreds of thousands of Allied troops was undertaken as the German forces began their concentration to the south against forces along the approach to Paris and left the now-contained survivors at Dunkirk to fall under the might of the Luftwaffe. While many war-weary souls were shuttled across the Channel to England, tons of Allied military equipment lay strewn about the European battlefields or left abandoned at Dunkirk itself. After the fall of Paris on June 22nd, 1940, the Germans could now focus on the complete destruction of nearby England.
In many ways, the British were left to fend for themselves for their allies in France and Belgium were subdued and the United States still maintained a position of neutrality. British fighting forces also lacked many of the weapons of war required to fight a prolonged campaign as hundreds of infantry weapons and support guns were lost in the commotion of Dunkirk. With the impending German invasion of the English mainland in their near-future, several notable weapons were born of this desperation period including the oft-forgotten "Northover Projector".