Dealing with Eastern Orthodoxy differed for Rome depending upon the region involved. Dr. John Rao discusses these varying relationships in exploring everything from Papal-Tsarist to Papal-Ottoman affairs. He also treats of the problems with Eastern Orthodoxy emerging from its own increasing self-awareness and the growth of the Ultramontanist Movement. Taken from: Phoenix in a Fiery World: Church in the 19th Century - 1999 VonHildebrand Institute