The effects of the Customs Union on Turkish foreign trade and foreign trade legislation

Looking at the history of the world, the trade policy of the states among each other; the colonial-imperialist state understanding that the powerful states were taxed by the weak, the tax measures they applied to each other if the two states were strong, or the tax privileges they had given each other. However, these policies have sometimes been economically disadvantageous to other states, including both parties to an agreement, sometimes both, or contracted parties. The political and economic disputes that lived until the end of World War II led to great destruction in the states. With the concern that the neighboring state of Soviet Russia would be exposed to communism and the US view this as a danger and that this danger could only be overcome with a united Europe, the European idea to unify emerged, with the material and intellectual support of the United States has been thrown away. Our work will first examine the explanations, causes, types, success conditions and integration tendencies in the world of economic integration theory and then examine the effects of the Customs Union Theory, one of the types of economic integration theory. It will be briefly mentioned from the history of the European Union, the institutions and organizations that our country has made a Customs Union agreement, and the process of entry into the Customs Union of our country will be mentioned. Afterwards, the alignment policies, revisions, laws, regulations, working procedures and principles of entry into the customs union will be examined. Finally, the Customs Union Agreement, which entered into force in 1996, examines our foreign trade data with the innovations brought about by our foreign trade legislation, and the impact on the Turkish Foreign Hades will be revealed. ii Keywords: Economic Integration, European Union, Custom Union, Turkish Foreign Trade