Both the Eastern Orthodox and Oriental Orthodox churches formally believe themselves to be the continuation of the true church and the other to have fallen into schism, although in the past 20 years much work had been done toward ecumenism or reconciliation between the Oriental and Eastern Orthodox churches. There has been an attempt to achieve ecumenism between the Antiochian and Oriental Orthodox churches. At Chambesy in Switzerland, plenary talks were held resulting in agreements in 1989, 1990 and 1993. All the official representatives of the Eastern Orthodox and the Oriental Orthodox reached agreement in these dialogues that the Christological differences between the two communions are more a matter of emphasis than of substance. Although elements in a number of the Eastern Orthodox Churches have criticized the apparent consensus reached by the representatives at Chambesy, the patriarch and holy synod of the Antiochian Orthodox Church welcomed the agreements as positive moves towards a sharing in the Love of God, and a rejection of the hatred of insubstantial division. As recommended in the Second Chambesy Agreement of 1990, the Antiochian (Eastern) Orthodox Patriarch Ignatius IV formally met with the Syriac (Oriental) Orthodox Patriarch, Ignatius Zakka I, on July 22, 1991. At that meeting, the two patriarchs signed a pastoral agreement which called for "complete and mutual respect between the two churches." It also prohibited the passing of faithful from one church to the other, envisaged joint meetings of the two holy synods when appropriate, and provided for future guidelines for inter-communion of the faithful and Eucharistic concelebration by the clergy of the two churches. The Church of Antioch expects these guidelines to be issued when the faithful of both churches are ready, but not before. Patriarch Ignatius has also overseen participation in a bilateral commission with the Melkite Greek Catholic Church, which is exploring ways of healing the 18th century schism between the Melkite Catholics and the Antiochian Orthodox. In an unprecedented event, Melkite Patriarch Maximos V addressed a meeting of the Orthodox holy synod in October 1996. The members of the holy synod of Antioch continue to explore greater communication and more friendly meetings with their Syriac, Melkite, and Maronite brothers and sisters, who all share a common heritage.