U Srbiji, drugoj dionici njegove turneje po četiri zemlje koje su nekad bile u sastavu bivše Jugoslavije, Westerwelle je izjavio da je zaključak suda UN-a bio "nedvosmislen" i da bi trebao okončati svu daljnju diskusiju o pitanju statusa Kosova.
In Serbia, the second leg of his tour of four countries that were once part of the former Yugoslavia, Westerwelle said that the UN court's finding was "unambiguous" and should have put an end to any further discussion on the issue of Kosovo's status.