As regards holdings of foreign archives and other organisations, primary sources will be the German Bundesarchiv (Koblenz and Berlin), the archives of the four occupying powers (US, USSR, Britain and France) and the archives of Israel, Poland, the Czech Republic, Slovakia, Hungary, Slovenia and Italy. As neighbouring countries of Austria, Liechtenstein and Switzerland could have certain materials (especially referring to the final phase of the war). Hence the following countries with their archives, collections and other relevant organisations are of importance: Croatia, the Czech Republic, Britain, France, Germany, Hungary, Israel, Italy, Liechtenstein, the Netherlands, Poland, Russia (including the successor states of the former member republics of the Soviet Union), Slovakia, Slovenia, Switzerland, the United States and Yugoslavia.