Abstract
Fr. John Long, S.J. engaged in ecumenical activity between Eastern Orthodox, Roman Catholics, and Eastern Catholics during the second half of the Cold War. This chapter analyzes his reflections on the origins and development Ukrainian Catholics over the longue durée and attempts to situate his understanding within Long’s broader ecumenical commitments during the Soviet era. In a still unpublished essay, Fr. Long positions Ukraine between the Three Romes of Rome, Constantinople, and Moscow, recognizing Ukraine’s unique status as a contested ecclesiastical and political space which deeply impacts ecumenical engagement. Charting his historical reflection and its impact on late-Soviet ecumenical engagement, this chapter articulates how his essay still bears relevance on the contemporary post-Soviet ecumenical landscape. © 2021, The Author(s).