by which he understands the fundamental apostolic calling of the church, and the plurality of missions, which he defines as the individual activities of churches in certain areas and among non-Christians. His concern is to tie into mission the way it was lived in the time of the early church. Meanwhile, in terms of church history, Bria makes a fundamental distinction between the missions of the East and the missions of the West, i.e., the missions of the Orthodox churches of the East, on the one