 In his speech, he left the final extent of the area east of the Oder Neisse that would become permanently Polish to be decided in the future, stating, "The Soviets and the Poles suffered greatly at the hands of Hitler's invading armies.As a result of the agreement at Yalta, Poland ceded to the Soviet Union territory east of the Curzon Line.Because of this, Poland asked for revision of her northern and western frontiers.