Poland's eastern borders had not become a major international issue, as the Western powers accepted the Soviet position in this regard. Decisions concerning the Polish–German border were made at the Potsdam Conference, where Stalin lobbied for Poland's maximal extension in the west, arranged for the Polish government delegation to present their point of view and in the end thwarted the long-standing British policy (aimed at keeping some of the lands in question for the future German state). In Poland, the PPR led the massive "Recovered Territories" propaganda campaign, the Allied-authorized expulsion of ethnic Germans and the repopulation of the region by Poles "repatriated" from the lost Kresy eastern areas. The exact eastern boundary was determined in the Polish–Soviet treaty signed on 16 August 1945, which finalized the contested issue of Lviv (the city stayed on the Soviet Ukrainian side of the border). The resettlement of Ukrainians who lived on the Polish side followed.