Timeline of Albanian history to 1993 cooperation signed with Yugoslavia; Yugoslav advisers and grain begin pouring into Albania. October<br> 26 October: Two British ships destroyed by mines off Albania's coast in the Straits of Corfu, see Corfu Channel Incident, . November<br> Albania breaks diplomatic relations with the United States after the latter withdraws its informal mission. 1947 April May<br> A United Nations commission concludes that Albania, together with Bulgaria and Yugoslavia, supported communist guerrillas in the Greek Civil War; Yugoslav leaders launch verbal offensive against anti-Yugoslav Albanian communists, including Hoxha; pro-Yugoslav faction begins to wield power. July<br> Albania refuses participation in the Marshall Plan of the
Albanian nationalism that came from the Greek side and from Slavic circles. The Greeks claimed that Albanians did not constitute a people, their language was a mixture of different languages and that an Albanian member of the Orthodox church was "really a Greek", while Slav publicists claimed that Kosovar Albanians were "really" Slavs or they were "Turks" who could be "sent back" to Anatolia. Apart from Greek nationalism being viewed as a threat to Albanian nationalism, emphasizing an antiquity of the Albanian nation served new political contexts and functions during the 1880s. It also arose from the Albanian need to counter Slavic