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 had agreed to that state of affairs which ran alongside Albanian nationalism. Kosovar Albanian nationalism drew upon and became embedded in popular culture such as village customs within a corpus of rich historical myths, distinctive folk music referring to harvests along with marriage and clan based law. Albania during World War One was occupied by foreign powers and they pursued policies which strengthened expressions of Albanian nationalism especially in Southern Albania. Italian and French authorities closed down Greek schools, expelled Greek clergy and pro-Greek notables while allowing Albanian education with the French sector promoting Albanian self-government through the Korçë republic.