Episcopal Conferences are, as a rule, national, that is, they bring together the Bishops of one country only,(63) since the links of culture, tradition and common history, as well as the interconnection of social relations among citizens of the same nation require more constant collaboration among the members of the episcopate of that territory than the ecclesial circumstances of another territorial entity might require.
Germanico bello confecto multis de causis Caesar statuit sibi Rhenum esse transeundum; quarum illa fuit iustissima quod, cum videret Germanos tam facile impelli ut in Galliam venirent, suis quoque rebus eos timere voluit, cum intellegerent et posse et audere populi Romani exercitum Rhenum transire.vatican.va vatican.va