In a reference to the 19th century "Greater German solution", the enlarged state was referred to as the Großdeutsches Reich ("Greater German Reich") and colloquially as Großdeutschland. The names were informal at first, but the change to Großdeutsches Reich became official in 1943. As well as Germany (pre-World War II borders), Austria, and Alsace-Lorraine, the Großdeutsches Reich included the Grand Duchy of Luxembourg, Sudetenland, Bohemia and Moravia, the Memel Territory, the Polish areas annexed by Nazi Germany, the Free State of Danzig, and the "General Government" territories (territories of Poland under German military occupation).