The Adenauer government refused to accept the Oder–Neisse line as Germany's eastern frontier. This refusal was in large part motivated by his desire to win the votes of expellees and right-wing nationalists to the CDU, which is why he supported "Heimatrecht", i.e. the right of expellees to return to their former homes. It was also intended to be a deal-breaker if negotiations ever began to reunite Germany on terms that Adenauer considered unfavorable such as the neutralization of Germany as Adenauer knew well that the Soviets would never revise the Oder-Neisse line. Privately, Adenauer considered Germany's eastern provinces to be lost forever.