The main purpose of the Legion was straightforward: to care for those who had suffered as a result of service in the Armed Forces in the Great War, whether through their own service or through that of a husband, father or son. The suffering took many forms: the effect of a war wound on a man's ability to earn a living and support his family; or a war widow's struggle to give her children an education.

But even those who had come through the war relatively unscathed struggled with employment. As a result of the war, Britain's economy plummeted and in 1921 there were 2 million unemployed. Over six million men had served in the war - 725,000 never returned. Of those who came back, 1.75 million had suffered some kind of disability and half of these were permanently disabled. To this figure then had to be added those who depended on those who had gone to war - the wives and children, widows and orphans as well as the parents who had lost sons in the war, on whom they were often financially dependent.

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