ロカルノ条約
A supporter of the Franco-Polish Military Alliance and the Polish–Romanian alliance, part of the Little Entente, Piłsudski was disappointed by the policy of appeasement pursued by the French and British governments, evident in their signing of the Locarno Treaties. The Locarno treaties were intended by the British government to ensure a peaceful handover the territories claimed by Germany such as the Sudetenland, the Polish Corridor, and the Free City of Danzig (modern Gdańsk, Poland) by improving Franco-German relations to such extent that France would dissolve its alliances in eastern Europe. Piłsudski felt a profound sense of abandonment by France after Locarno. Piłsudski, therefore, aimed also to maintain good relations with the Soviet Union and Germany.