Located at the crossroads of the Balkans, Caucasus, Middle East, and eastern Mediterranean, Turkey plays a significant role in the world economic and political order due to its strategically important geographic location. Sharing its massive border with eight different countries, it is bordered on the north by four countries, Georgia and Armenia on the northeast and Greece and Bulgaria on the northwest, on the east by Azerbaijan and Iran, and on the southeast by Iraq and Syria. Over the years Turkey has emerged as a bridge between Europe, Asia, Middle-East, and North Africa due to its eminent central location on the world map. The EU and Turkey are linked by a Customs Union free trade agreement, which allows tariff-free import/export between the members, thus leading to substantial commercial advantage. Turkey is home to a large expat community of international migrants who live and work there.