During the wars and the present crisis, the effect on the economy of the country is significant. In the former, private sector employment decreased to be redeployed to the war effort and a significant proportion of a healthy work force was injured or killed. The majority of the economy was diverted towards the war effort that led to a boom in manufacturing arms, ammunitions and sundries for the war with a significant drop in unemployment especially when conscription to the war effort started after the Blitz. Agricultural production increased by at least 35% and the nation was well fed by the introduction of rationing. In addition to this, much of the food grain to feed soldiers was supplied by the colonies especially India. In 1941, the GDP was more than 20% of what it was in 1938. Britain acquired a large reserve in foreign exchange due to the generous loans by both USA and Canada. Industrial infrastructure was reasonably well preserved and escaped physical devastation as the war was not fought on British soil. Since this country depended on imports to keep her factories running, this did suffer a blow in the initial period due to sinking of convoys by German U boats in the Atlantic, however, this was effectively countered by the Royal and the US Navy. So overall, Britain as a nation was financially secure and sufficient from the economic point of view. As a result, after the war, the recovery was quick.