adolf hitler allied commission allied high commission allied occupation zones in germany berlin berlin air safety center berlin blockade berlin wall bizone chancellor of germany cold war de facto demilitarisation denazification deutsche mark european advisory commission far eastern commission four-power authorities france georgy zhukov german instrument of surrender german language history of germany jean de lattre de tassigny kammergericht london military military rule nazism nuremberg trials occupation of japan peace treaty potsdam agreement prussia soviet military administration in germany soviet union spandau prison supreme headquarters allied expeditionary force united kingdom united states vasily sokolovsky