America's allies in Europe were facing starvation. Farmers no longer could grow crops and raise livestock because most were off to fight in the war. The war made it hard for food and other materials to be imported into America, so the US issued ration books. Ration books help people in need of food and other necessities. There were stamps, without the stamps, you weren't allowed to purchase any of the goods that you would be able to do normally. The red stamps covered meats, butter, fats, oils, and cheeses. The blue stamps covered tanned, bottled, and Frozen fruits. As well as vegetables, plus juices and dry beans. And processed foods such as soups, baby food and ketchup. Ration stamps became a type of currency with each family being issued