One week before Hoover celebrated his 40th birthday in London, Germany declared war on France, and the American Consul General asked his help in getting stranded tourists home. In six weeks his committee helped 120,000 Americans return to the United States. Next Hoover turned to a far more difficult task, to feed Belgium, which had been overrun by the German army. After the United States entered the war, President Wilson appointed Hoover head of the Food Administration. He succeeded in cutting consumption of foods needed overseas and avoided rationing at home, yet kept the Allies fed.