Still, although unsuccessful, his diplomatic efforts during the war are credited with an increase of papal prestige and served as a model in the 20th century for the peace efforts of Pius XII before and during World War II, the policies of Paul VI during the Vietnam War, and the position of John Paul II before and during the Iraq War.
Namun, meski tidak berhasil, upaya diplomatiknya selama perang dikreditkan dengan peningkatan pamor paus dan menjadi model pada abad ke-20 untuk upaya perdamaian Pius XII sebelum dan selama Perang Dunia II, kebijakan Paulus VI selama Perang Vietnam, dan posisi Yohanes Paulus II sebelum dan selama Perang di Irak.