Sanders lauded Francis' repeated call to overcome a "globalization of indifference" -- labeling it "the most powerful name to the predicament of modern society."
"There is no 'just war,'" the some 80 participants of the conference state in an appeal they released April 14.
Updated: The presidential candidate is set to speak Friday afternoon in a presentation titled "The Urgency of a Moral Economy: Reflections on the 25th Anniversary of Centesimus Annus."
The conference will bring some 80 experts to Rome with the aim of developing a new moral framework that rejects ethical justifications for war.
Rome: "How do you say the truth without wounding mercy? How do you be merciful without omitting the truth?"
St. Patrick's Day is now a big celebration on multiple continents, but how did it get going? Patrick, who died in 461 A.D., didn't launch the festivities himself.
Third Anniversary of Election: Catholic conservatives are worried Pope Francis is quietly unraveling the legacy of his predecessors.
ROME -- Campaigners across Italy have held rallies calling for same-sex couples to be granted legal recognition and family rights, but they are facing tough opposition.
Vatican -- Pope Francis has launched his yearlong push for a global Catholic church of mercy and forgiveness, starting the Jubilee year by calling for a church that always puts mercy before judgment.
Synod, Day 8: A letter from several cardinals to Pope Francis, reportedly given to Francis on the first day of the synod, sees the cardinals sharply criticize the meeting.