Pope Tawadros II
The global growth of Islam and in particular the rise of Islamic extremism have forced recent popes to set out, with increasing urgency, a strategy for engaging the religion.
Cairo: Francis and Tawadros signed the surprise declaration at the Orthodox St. Mark Cathedral, a significant step forward in relations between the Roman Catholic and Coptic Orthodox Churches.
Pope Francis' two-day visit to Egypt at the end of this week could be one of the most delicate yet of his four-year papacy.
Faith and Justice: Amid security fears, Francis will have the tricky task of acknowledging the increased religious freedom in Egypt while not ignoring horrendous violations of human rights.