As a result of the annexation of the Sudetenland, Czechoslovakia lost 800,000 citizens, much of its industry and its mountain defences in the west. It left the rest of Czechoslovakia weak and powerless to resist subsequent occupation. In the following months Czechoslovakia was broken up and ceased to exist as Germany annexed the Sudetenland, Hungary part of Slovakia including Carpathian Ruthenia, and Poland Zaolzie. On 15 March 1939, the German "Wehrmacht" moved into the remainder of Czechoslovakia and, from Prague Castle, Hitler proclaimed Bohemia and Moravia the Protectorate of Bohemia and Moravia, completing the German occupation of Czechoslovakia. An independent Slovakia was created under a pro-Nazi puppet government.