Apparently in 1810 Britain was suffering form grain shortage and Napoleon authorized grain shipments to the English thinking it could be brought to its knees but he ignored the fact that the continental help could fund war effort according to Ronald Findlay and Kevin h Rourke in Power and Plenty the World economy in the second Mellenium. So what if this did happen. Napolean decides not to aid the Britissh food crisis. Could we see a British withdrawal form the war with Napoleon?