You do not? I hope when you say 'we' you mean US.
More important to the Serbians is that Russia and China agree with that story. They are much closer to Serbia and are familiar with the history of Balkans. Albanians here just can not admit the truth, naturally. Their whole self procalmation of Kosovo, whole country, history is established on lies. This is according to one of the Albanians famous historians Fatos Lubonja.