[1] From March to September 1998, he was on a business trip as part of the Russian separate airborne brigade of the contingent of the United Nations Mission in Bosnia and Herzegovina,[1] where, as he later recalled, he had to face "unprecedented blatant injustice against an Eastern Orthodox people".
[1] On December 24, 2004, by the decision of the Holy Synod of the ROC, he was dismissed from the post of a member of the Russian Ecclesiastical Mission in Jerusalem and he was appointed rector of the Metochion of the Russian Orthodox Church in Alexandria and the Church of Demetrius of Thessaloniki in Cairo, Representative of the Patriarch of Moscow and All Russia to the Pope and Patriarch of Alexandria and all Africa.
[3] On 25–29 September 2007, as part of the delegation of the Russian Orthodox Church, he attended the celebrations dedicated to the 2000th anniversary of the Birth of Christ according to the Ethiopian calendar.
[4] In June 2009, he attended the meeting of Patriarch Theodore II of Alexandria and President of the Russian Federation Dmitry Medvedev in Cairo.
The consecration was performed by Patriarch Kirill of Moscow and All Russia, Metropolitan Barsanuphius (Sudakov) of Saransk and Mordovia, Metropolitan Hilarion (Alfeyev) of Volokolamsk, Archbishop Arsenius (Yepifanov) of Istra, Archbishop Mark (Golovkov) of Yegoryevsk, Bishop Sergius (Chashin) of Solnechnogorsk, Bishop Tikhon (Zaitsev) of Podolsk.
[11] In August of the same year, he handed over the affairs at the metochion in Cairo to priest Viktor Kulaga, and left for South America.
[15] On 27 December 2016, by the decision of the Holy Synod of the Russian Orthodox Church, he was appointed administrator of the Patriarchal Parishes in Armenia.
[18] On 17 October 2019, at an extraordinary meeting of the Holy Synod of the ROC, he was appointed deputy chairman of the Department for External Church Relations while retaining the position of the ruling bishop of the Vladikavkaz diocese.
[22] On 15 October 2021, by the decision of the Holy Synod of he ROC, in connection with the formation of the Diocese of Yerevan and Armenia, he was appointed its administrator, while retaining the post of deputy chairman of the Department for External Church Relations.
[26] Metropolitan Leonid stated that this decision is "canonically insignificant" and will have absolutely no effect on his ministry: "Only the Church in which I serve can deprive me of my dignity.