In August 1914, war was declared. Millions of soldiers moved to the front and they had to be fed. There was need to produce, supply, manage and distribute food. A new war economy was needed. It affected not only the armed forces, but also economy, education, health, agriculture, industry, and the propaganda services. In order to feed 80 million soldiers and to supply essentials to civilians, the resources of the whole world were being mobilized. Our current organization of food circuits owes a lot to innovations of the Great War.