After the death of the controversial patriarch
David V, on 9 November 1977 Ilia was elected
locum tenens of the patriarchal throne by majority vote in the Holy Synod of the Georgian Orthodox Church. Ilia II was elected the new
Catholicos-Patriarch of All Georgia on 23 December, and was enthroned in a ceremony on 25 December 1977 at the
Svetitskhoveli Cathedral. Ilia II also pushed the government to register existing parishes and monasteries, while also reclaiming historic buildings of the Church, some of which had been used for other purposes by the Soviet state. This peaceful demonstration
was dispersed by the Soviet troops, leaving behind 22 dead and hundreds injured. In the post-Soviet years, his patriarchate expanded the Church's role in social welfare,.
Initiative to increase the birth rate In December 2007, concerned with Georgia's declining birth rate, Ilia II offered to personally baptize any child born to a family that already has at least two children, as long as the new child was to be born after his announcement. He conducted mass
baptism ceremonies four times a year. The patriarch's initiative contributed to a national baby boom, and in the following year of 2008, Georgia recorded the highest number of births in a decade, as being baptized by the Patriarch is a considerable honour among adherents of the Orthodox Church. Ilia II had more than 47,000 godchildren.
Relations with other churches , 14 December 2012 The growing role of the Georgian Orthodox Church under Ilia II was acknowledged by the
World Council of Churches. He was one of the presidents of the WCC from 1979 to 1983. On 4 March 1990, the Georgian Orthodox Church received the recognition of its autocephaly during a meeting between
Demetrios I of Constantinople and Ilia II. He continued to have good relations with the Ecumenical Patriarchate during his tenure, marked by mutual visits. Later on, the Church turned against
ecumenism. In the early years of Georgia's independence, Protestant "sects" and the
Catholic Church in Georgia were accused by the Georgian Orthodox Church of using their wealth to buy support among Georgians. Although he met Pope John Paul II again during the latter's visit to Georgia in November 1999, the Church rejected interfaith agreements with the
Vatican in September 2003. He and the Church were encouraged by President
Mikheil Saakashvili to engage in diplomacy and to lay the foundation for the restoration of political dialogue with Russia. In April 2008 he expressed regret at the low state of relations between Russia and Georgia. Ilia II also blessed the 1 September 2008 "Stop Russia" demonstrations, in which tens of thousands organized
human chains across Georgia. and
Patriarch Kirill of Moscow, 23 January 2013. In December 2008, Ilia II visited Moscow to participate in the funeral service of Russia's Patriarch
Alexy II. On 9 December 2008, he met Russia's President
Dmitry Medvedev, which was the first high-level official contact between the two countries since the August war. Later, Ilia II announced that he had some "positive agreements" with Medvedev which needed "careful and diplomatic" follow-up by the politicians. United States Ambassador
John F. Tefft described Ilia II as an "astute diplomat" who "expressed his desire to serve a positive role in normalizing and stabilizing relations with Russia." In April 2019 a statement was issued indicating that the Georgian Patriarchate was waiting for decisions to be made by other churches, noting that the OCU was only recognized by three other Orthodox churches at the time. In March 2023, Ilia II wrote a letter to Ecumenical Patriarch Bartholomew I expressing "great heartache" over the ongoing
Russo-Ukrainian war and expressing his concern over the non-renewal of the right of the
Ukrainian Orthodox Church (UOC), which is subordinate to the Moscow Patriarchate and is not recognized by Bartholomew, to use the
Kyiv Pechersk Lavra monastery. Ilia's statement prompted criticism in Georgia, where it was interpreted by some as support for the Moscow Patriarchate and Russia. ==Death and legacy==