There is no contradiction between seeking future reunification and participating in international society prior to reunification. Before reunification, both East and West Germany enjoyed international participation, and it meant that the two were on a similar footing, making it that much easier to reach consensus. And the international scope was of even more benefit to post-reunification Germany.
追求統一與統一前參與國際活動並不互相妨礙或相衝突，統一前的東德與西德都有各自完整的國際空間，反而使彼此的立足點相當，更能建立共識，國際氛圍也更有利於統一後的德國。