By Francesco Guarascio BRUSSELS (Reuters) - Kosovo took a step towards possible European Union membership on Tuesday, signing a trade and political pact with Brussels less than a decade after unilaterally declaring independence from Serbia. "It is a milestone in our mutual relationship, in particular for the European aspirations of Kosovo," EU Commissioner for Enlargement Johannes Hahn said during the signing ceremony in the European Parliament in Strasbourg. The pact comes despite the fact that EU states Spain, Cyprus, Romania, Greece and Slovakia do not recognise Kosovo's independence from Serbia.