using the historical relationship between France and the United States as well their shared democratic values would win the American public over to a more favorable view of France. Much to St. Léger's surprise, on 31 March 1939, Chamberlain reversed his long-standing policy of "no commitments beyond the Rhine" by announcing in the House of Commons the famous British "guarantee" of Poland. During the Danzig crisis, relations between Bonnet and Daladier became increasing strained and hostile as the two men held diametrically opposed views about whatever France should go to war for Poland. Starting in April 1939, Daladier worked to marginalise Bonnet by dealing directly with St. Léger and entirely by-passing the foreign minister. St. Léger knew from the reports of the Deuxième Bureau that the Chamberlain government was deeply worried about the prospect of Japan taking advantage of a war in Europe to seize Britain's Asian colonies and threaten Australia and New Zealand, and wanted American support in the Pacific. On 11 April 1939, Lord Halifax had written a letter to U.S. President Franklin D. Roosevelt asking him to move the U.S. Atlantic fleet to the Pacific to dissuade the Japanese from taking advantage of the Danzig crisis, a request that Roosevelt had refused. Knowing that the British would be more active in Europe if the Americans were more involved in Asia, St. Léger met with William Christian Bullitt Jr., the American ambassador in Paris and a close friend of Roosevelt's, to tell him that the Deuxième Bureau was aware of a secret German-Japanese plan that Japan would attack the European colonies in Asia the moment Germany invaded Poland. Prying on American stereotypes of Britain, St. Léger told Bullitt that pressure from the City had led Chamberlain to decide to send the main part of the Royal Navy to Singapore (the major British naval base in Asia) and accordingly the Danzig crisis was more likely to end in war. Bullitt-who talked on the telephone on a weekly basis with Roosevelt-accordingly passed on these claims to Roosevelt, who reversed himself and ordered much of the U.S. Atlantic fleet transferred over the Pacific fleet. St. Léger himself was concerned about the Japanese as he noted that in February 1939 the Japanese had occupied the Spratly Islands in the South China Sea, which placed Japanese forces very close to French Indochina while France could spare no naval forces for Asia because of