"The most famous and significant conference of the 1920s took place at Locarno, on Lake Maggiore in northern Italy, in October 1925. The principals were the foreign ministers of Britain, France and Germany—Austen Chamberlain, Aristide Briand and Gustav Stresemann. Their great achievements were to guarantee the Rhineland borders of France and Germany and to bring Germany into the League of Nations. The so-called spirit of Locarno became a benchmark for diplomacy. In retrospect, however, Locarno looks more ambiguous. Stresemann had succeeded in bringing Germany in from the cold without abandoning any of its demands for lost territory in the east. These demands, particularly over Poland, were to prove the fuel for the next war."