The Oster Conspiracy of 1938 was a proposed plan to overthrow German Führer Adolf Hitler and the Nazi regime if Germany went to war with Czechoslovakia over the Sudetenland. It was led by Generalmajor (major general) Hans Oster, deputy head of the Abwehr (Germany's counter-espionage agency) and prominent figures within the German military who opposed the regime for its behaviour that was threatening to bring Germany into a war that they believed it was not ready to fight. They planned to overthrow Hitler and the Nazi regime through a planned storming of the Reich Chancellery by forces loyal to the plot to take control of the government, who would either arrest or assassinate Hitler, and most of the members involved agreed that they would support the restoration of the Hohenzollern monarchy