In the second half of March 1939, Goerdeler together with Schacht and Hans Bernd Gisevius visited Ouchy, Switzerland, to meet with a senior French "Deuxième Bureau" intelligence agent representing French Prime Minister Édouard Daladier Goerdeler told the agent that the strain of massive military spending had left the German economy on the verge of collapse; that Hitler was determined to use the Danzig issue as an excuse to invade Poland, which in itself was only a prelude for a German seizure of all of Eastern Europe; that a forceful Anglo-French diplomatic stand could deter Hitler; and that if Hitler were deterred long enough, the economic collapse of Germany would cause the downfall of his regime. In April 1939, during a secret meeting with the British diplomat Sir Gladwyn Jebb, Goerdeler stated that if the British continued with their "containment" policy adopted in March 1939, then they might see the "Hitler adventure... liquidated before the end of June ." There is considerable debate as to the accuracy of that information, with some historians such as Richard Overy arguing that Goerdeler and other German conservatives had exaggerated German economic problems to the British and the French. Overy charged that Goerdeler wanted a very firm Anglo-French stand in favour of Poland in the hope that if confronted with such a situation, the German Army would overthrow Hitler, rather than risk a world war, and so Goerdeler exaggerated the economic problems of the "Reich" to encourage such a stand.