United Nations Security Council Resolution 232, adopted on December 16, 1966, noted with concern that the efforts to break off international economic activity with Southern Rhodesia had failed to bring the rebellion to an end, the Council decided that all member states would prevent the importation of an asbestos, iron ore, chrome, pig-iron, sugar, tobacco, copper, or animal-products that had originated in Southern Rhodesia. Additionally, the activities of any of their nationals designed to promote the export of these commodities or the importation of arms, ammunition of all types, military aircraft, military vehicles and equipments and materials for the manufacture and maintenance of arms and ammunition along with a total embargo of oil and oil products, though exception was made for contracts granted before this resolution.