weaken the Franco-Polish alliance and force the Poles to yield to the force majeure of Germany's power. From the early 1920s onward, British foreign policy aimed to revise aspects of the Treaty of Versailles in favor of the Reich, such as the eastern borders Versailles had imposed on Germany, in exchange for German acceptance of the other aspects of the Versailles settlement of which the British approved. The way that the French largely yielded to British demands at the Locarno conference was seen as a betrayal in Poland. The French Foreign Minister Aristide Briand carried out a foreign policy aimed at a rapprochement with Germany, which caused much alarm in Warsaw. As long as the Rhineland was occupied by the French Army, it served as a form of "collateral" if Germany should violate the Treaty of Versailles and placed the French in a strong position to launch an offensive to the Ruhr and launch an offensive into the North German Plain. In 1928, Briand accepted the offer by German Foreign Minister Gustav Stresemann that France would end the occupation of the Rhineland five years early with the French to pull out of the Rhineland by June 1930 instead of June 1935 as the Treaty of Versailles had called for. Briand's plans for an early end of the Rhineland occupation in exchange for better relations with the Reich were vehemently opposed by Polish diplomats, who wanted the French to stay in the Rhineland until 1935. The Poles did not expect the Germans to abide by the Treaty of Versailles, and it was believed that with the end of the French occupation that the Rhineland would remilitarized in the near-future.. In turn, if the Germans constructed defensive works along the Franco-German border, that in turn would allow Germany to focus its might entirely against Poland. Besides for opposing the plans for an early end of the Rhineland occupation, Piłsudski wanted France to strengthen its alliance with Poland, and was much offended when Briand rejected his plans as he preferred better relations with Berlin over Warsaw. It has been said that Piłsudski's reason for seeking the declaration with Germany was his concern over France's Maginot Line. Until 1929, French plans had called for a French offensive into the North German Plain, in conjunction with offensives from Poland and Czechoslovakia. The construction of the Maginot Line, which began in 1929, indicated the French Army's