Serbian President Aleksandar Vucic was sitting on the rooftop of the swanky New York hotel amidst the steel and glass expanse that delineates Manhattan’s skyline. Dressed in a navy blue suit complemented by a crisp white shirt and a blue tie, he sipped on mint tea, a fleeting interlude after his meeting with the UN Secretary General, Antonio Gutteras. Vucic’s journey to the heart of New York City was spurred by an urgent UN Security Council session convened in response to Kosovo’s government abrupt and unilateral suspension of the Serbian dinar. Despite “deep concern” and calls for an “immedia…