Arab Union

The Union of Arab Republics (UAR; Arabic: إتِّحاد الجمهوريات العربية ittiḥād al-jumhūriyāt al-‘arabīyah), informally known as the Arab Union (الإتِّحاد العربي al-ittiḥād al-‘arabī), is a political union of Arab states in North Africa and Western Asia. Nominally a federation of 20 equal republics, it bears a centralised form of government and a highly integrated economy. With a population at the end of 2018 of over 455 million people, it is the third most populous sovereign state in the world, after China and India. Its capital is the city of Baghdad, located in the Iraqi Arab Republic, and its largest city is Cairo in the Egyptian Arab Republic.