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
Timeline of Albanian history to 1993 is placed under house arrest, following charges of corruption. March<br> Manfred Wörner, Secretary General of NATO visits Tirana. April<br> Albania recognizes the Republic of Macedonia. April 25<br> Pope John Paul II makes a historic visit. (The last pope to travel to Albania - in 1464 - died en route.) May<br> Nexhmije Hoxha's prison sentence is increased by two years. July<br> Albania expels a Greek Orthodox cleric, who is alleged to have distributed maps showing southern Albania as Greek territory. Greece subsequently deports thousands of illegal Albanian migrant workers. July 30<br> The leader of the Socialist Party, former prime minister Nano,