Tobias Winright, Professor of Moral Theology, SPPU, gave an invited paper, "From Legitimate Defence to Integral Security: Catholic Social Teaching on War and Peace from Gaudium et Spes to Fratelli Tutti to Today," on 14 September in Warsaw, Poland, as part of an annual Seminar on Catholic Social Teaching, sponsored by the United States Conference of Catholic Bishops and the European Centre for Communication and Culture, which is a Jesuit community.

Attendees include bishops, priests, religious and consecrated, and laity from Poland, Ukraine, Bulgaria, Slovakia, and other nations.