The process of linking the national economy with the economies of other countries, through trade and exchange of mutual interests and benefits With the emergence of specialization and division of labor between individuals and groups, economy is starting to exchange imposes his presence, and expanded exchanges to include all sectors of the economy: in terms of states that do not produce other goods preferred need for foreign trade based on the availability of benefits in different economies. Accordingly, the mean expansion of trade relations and interests with other countries in the world