"Serbia’s president, Aleksandar Vučić, and Kosovo’s prime minister, Avdullah Hoti, walked away on 4 September with separate documents, which restated agreements already made between the two sides, such as infrastructure projects that were already under way.
The new element was a tie-in with the Middle East. Both parties agreed to move their embassies to Jerusalem, which appeared to come as a surprise to Vučić. On hearing Trump announcing it at the elaborate Oval Office ceremony... the Serbian leader thumbed through the documents in front of him and cast a bewildered look to an aide standing off camera. A few days later, his office let it be known that Serbia would not be keeping its end of the Jerusalem bargain if Israel recognised Kosovo, which had also been part of the deal."