Query: What was the Egyptian-Syrian alliance called?
Context: Nasser subsequently opted for union, albeit on the condition that it would be a total political merger with him as its president, to which the delegates and Syrian president Shukri al-Quwatli agreed. On 1 February, the United Arab Republic (UAR) was proclaimed and, according to Dawisha, the Arab world reacted in "stunned amazement, which quickly turned into uncontrolled euphoria." Nasser ordered a crackdown against Syrian communists, dismissing many of them from their governmental posts.