During World War II, Liechtenstein remained officially neutral, looking to neighbouring Switzerland for assistance and guidance, while family treasures from dynastic lands and possessions in Bohemia, Moravia, and Silesia were taken to Liechtenstein for safekeeping. At the close of the conflict, Czechoslovakia and Poland, acting to seize what they considered German possessions, expropriated all of the Liechtenstein dynasty's properties in those three regions. The expropriations (subject to modern legal dispute at the International Court of Justice) included over  of agricultural and forest land (most notably the UNESCO listed Lednice–Valtice Cultural Landscape), and several family castles and palaces.