The rhetoric of war rations aligned food consumption with the war in Europe and Asia but also with the vitality of U.S. agriculture and consumerism. While these campaigns aimed to conserve U.S. food surpluses for the purpose of providing food aid to overseas militaries and civilian populations, they also functioned to jettison certain foodstuffs." Production of the D ration bar was discontinued at the end of World War II. However, Hershey's Tropical Bar remained a standard ration for the United States Armed Forces. The Tropical Bar saw action in Korea and Vietnam as an element of the "Sundries" kit (which also contained toiletries), before being declared obsolete. It briefly returned to use when it was included on board Apollo 15 in July 1971.