Amerykański przyjaciel? Problem granic Polski w kontaktach ambasadora Anthony’ego J. Drexela Biddle’a z rządem Władysława Sikorskiego w latach 1941–1943

The article deals with Polish borders and territorial issues seen from the perspective of the United States Ambassador to Poland Anthony J. Drexel Biddle’s contacts with the government of Wladyslaw Sikorski in 1941–1943. The aim of the article is to present, on the basis of American and Polish archival materials, the American assessment of Polish border issues, as well as the expectations of the Polish government towards the United States and Western allies regarding territorial issues, particularly against the background of the Polish-Soviet relations evolving since 1941. The conducted research allows us to conclude that Sikorski’s government, which revealed to Biddle its readiness to compromise with the Soviets, could not count on support, let alone a guarantee from the United States that the pre-war shape of the Polish-Soviet border would be maintained.