RT Article T1 From a Uniform to a Multiform Understanding of Church. Foundations of Exchange in the Preconciliar Missiology of Jean Bruls JF Exchange VO 51 IS 2 SP 140 OP 158 A1 Ooms, Toon LA English YR 2022 UL https://ixtheo.de/Record/1815212268 AB During the first half of the 20th century, genuine exchange between the churches within Roman Catholicism was virtually non-existent. Church was conceived of as the one Roman Catholic Church, and the relationship between churches was one of a Western unilateralism. Shortly after the Second World War, the Belgian Catholic missiologist Jean Bruls (1911–1982), editor-in-chief of the missiological journal Église Vivante, pointed to the necessity of an exchange (“échange”) between the Western church and the non-Western churches. This article argues that Bruls’ early attention to interchurch exchange was the result of a new conceptualization of Church. The article shows to what extent Bruls’ missiology was an anticipation of the mission doctrine of the Second Vatican Council (1962–1965). K1 Jean Bruls K1 History K1 Ecclesiology K1 mission theology K1 Exchange DO 10.1163/1572543x-20221627