During the 19th-century uprisings against the Ottoman Empire in Greece and the Balkan states, the churches in these territories formed close alliances with nationalist governments. The relationship between church and state in Russia and the eastern European nations intensified in the Soviet Era, leading to direct government control and interference in the affairs of the churches. Government agents infiltrated church hierarchies, which subverted traditional Orthodox values of consultation and conciliation and alienated church hierarchies from their flocks. Churches and patriarchates were used for suppression of dissent, propaganda, and even war. State manipulation of the churches even extended into the diaspora, where Orthodox immigrant clergy in the United States, western Europe, and Australia became entangled in Cold War politics. Orthodox churches are also implicated in the nationalist hatreds that have afflicted Russia and the Balkans into the present moment.
The collapse of the Soviet Union in 1991 and the related liberation of Russia and eastern Europe from Communist rule brought freedom and self-determination to the Eastern Orthodox Churches in these countries. This sudden freedom included the need to come to terms with the painful recent past, and explore the role of Orthodoxy in the 21st century. This process is underway. The various churches of the former Soviet Republics face an internal reckoning with ethnic nationalism, and they struggle with past and present anti-semitism. They face an external reckoning with the unfamiliar values of the modern world, including individualism, market capitalism, democracy, and the secularism of the separation of church and state. The Greek Orthodox Church is much more familiar with these values, and had the luxury of time to get used to them, since the Greek Church became independent in 1833 and Greece was not subject to Communist rule.
The ecumenical patriarchate of Constantinople (Istanbul) paid a terrible price for its nationalist politics in the early 20th century, losing nearly all of its flock in the population transfer between Greece and Turkey mandated by the Treaty of Lausanne. Having learned from that mistake, the patriarchate has devoted itself to providing leadership in the areas of ecumenical and canonical unity among all Orthodox Christians. In the meantime, the ancient patriarchates of Alexandria, Antioch, and Jerusalem are deeply affected by Arab aspirations and the conflict over the establishment of the nation of Israel.
Government intervention and manipulation in the 20th century was a problem for the church hierarchy, while grass roots Orthodoxy hints at a different story. Ordinary Christians in the Soviet years, alienated from church and state hierarchy alike, focused on adhering to the liturgical rhythms of worship, and embraced Orthodox spirituality, including a renewed interest in hesychasm, the spiritual discipline of "inner stillness." In the late 18th century, two members of a Greek Orthodox revival movement called the Kollyvades published a huge volume of ascetic and mystical texts collected from the 4th to the 15th centuries. Titled the Philokalia, it runs over 1,000 pages. Intended for lay people and monks, it is devoted to the theology and practice of inner prayer, particularly the Jesus Prayer. Initially sparking a spiritual revival in 19th-century Russia, the Philokalia sparked a second revival in Russia after 1950, which spread to the rest of the Soviet Republics and into the diaspora, sustaining the spiritual life of monks and laypeople alike. The Orthodox ethos also found expression in Russian and Greek culture, through the novels of Fyodor Dostoevsky and Leo Tolstoy, and the short stories of Alexandros Papadiamantis. The interest in the Philokalia and in hesychasm is still very high, and is providing a basis for dialogue between Orthodox, Roman Catholic, and Anglican Christians.
As the Eastern Orthodox Communion makes its way into the 21st century by examining its recent past and recommitting to Orthodox fellowship and unity, it faces the challenges inherent in participating in the international community. Relations between eastern and western Christians have historically not been good. Eastern Orthodoxy still bears the scars of the pillaging of Constantinople by Western Christians in 1204. Since the fall of the Soviet Union, an influx of enthusiastic and well-funded evangelical Christians has arrived from the west, threatening the integrity of Orthodox communities. There have been recent signs of hope for reconciliation between Orthodox and Roman Catholic Christians. In 2001, Pope John Paul II made a papal visit to Greece, the first visit by a pope to Greece in a thousand years. And in 2004, the Roman Catholic Church returned the relics of St. John Chrysostom to Constantinople. These relics were originally plundered by the Crusaders in 1204.