The catastrophe St Irenaeus of Lyons (+202) writes of in Against the Heresies happened when the last Roman emperor, St-Tsar Nicholas II, was martyred and the Orthodox Roman Empire centered in Russia fell to the Communists:
Chapter XXVI.-John and Daniel Have Predicted the Dissolution and Desolation of the Roman Empire, Which Shall Precede the End of the World and the Eternal Kingdom of Christ. The Gnostics are Refuted, Those Tools of Satan, Who Invent Another Father Different from the Creator.
1. In a still clearer light has John, in the Apocalypse, indicated to the Lord's disciples what shall happen in the last times, and concerning the ten kings who shall then arise, among whom the empire which now rules [the earth] shall be partitioned. He teaches us what the ten horns shall be which were seen by Daniel, telling us that thus it had been said to him: "And the ten horns which thou sawest are ten kings, who have received no kingdom as yet, but shall receive power as if kings one hour with the beast. These have one mind, and give their strength and power to the beast. These shall make war with the Lamb, and the Lamb shall overcome them, because He is the Lord of lords and the King of kings." It is manifest, therefore, that of these [potentates], he who is to come shall slay three, and subject the remainder to his power, and that he shall be himself the eighth among them. And they shall lay Babylon waste, and burn her with fire, and shall give their kingdom to the beast, and put the Church to flight. After that they shall be destroyed by the coming of our Lord. . . .
Source: Book V, http://www.earlychristianwritings.com/text/irenaeus-book5.html, opened 13 Oct. 2017
We are now in the time when Antichrist can appear:
St. Paul made it clear to the Thessalonians that before the Antichrist can make his public appearance, there first must be a massive apostasy, or falling away, from the Christian Faith. “The falling away comes first, and the man of sin is revealed, the son of perdition.” (2 Thess. 2:3) St. Paisios of Mount Athos (d. 1994), a modern day saint who lived through most of the twentieth Century was of the opinion that this requirement has been fulfilled. Commenting upon our times, he said that “The situation is horrible. Madness has gone beyond all bounds. Apostasy is upon us, and now the only thing left is for the ‘son of perdition’ (2 Thess. 2:3) to come. The world has turned into a madhouse.”3
Source: Fr Andrew J. Anderson, http://orthochristian.com/106805.html, opened 13 Oct. 2017
However, several holy elders in the 20th hundredyear made it clear that if there was true repentance in Russia, one last flowering of the Orthodox Church would occur before the end.
Knowing this, what should the South be doing? Exalting the non-culture of ‘Americana’ with its nihilistic freedom, muscle cars, and professional sports? Trying to make a scene with torches at nighttime rallies? Playing fantasy dress-up in Crusader outfits? Sulking and shouting about slavery?
None of that means anything. Our task now ought to be to live the sober-minded, repentant Orthodox life of our forebears in Western Europe and Africa, which turns the dark, stony heart of the heathen into a clear crystal lamp radiating the Grace of the Holy Ghost (that is, the Orthodox Church makes actual holy saints, not the weak imitations of Roman Catholicism and the even weaker imitations of Protestantism), which steels a man for martyrdom (for the Orthodox life itself is a lifelong martyrdom), which gives us a foretaste here and now of the Kingdom that is to come during the Divine Liturgy and during moments of pure prayer.
And along with this, as we have said before, the South must support Orthodox Russia, pray for her, become her ally.
These are the things that matter. If we turn our backs on them, the Orthodox Roman Empire will not be restored in Russia, Antichrist will come, and the world will end.
He who loves the Tsar and Russia loves God…He who does not love the Tsar and Russia will never love God sincerely.
Elder Nikolai Gurianov
We Orthodox Christians of the Empire of Rus suffer, for through sin we lost our earthly leader one hundred years ago. Then fell the Third Roman Empire, Holy Rus. Since then there have been many schisms and vain rivalries in Local Churches, attempts to meddle everywhere and human foolishness and weakness of every sort. Thus, at the present time the last bulwark of the Christian world is only a republic, called the Russian Federation, as it has no Emperor and is not even ready to choose a new Emperor, as many still reject the former Emperor-Martyr.
All of us Orthodox Christians who have been deprived of earthly leadership belong to this Empire in spirit and eagerly await its reconstitution. For whatever our earthly passports say, all conscious Orthodox Christians belong to this Empire, for it is our identity. When it is restored, then the whole world will find its balance and peace once more. But when will that be?
The Empire of Rus will be restored when its three main parts have repented for all that was and is alien to Orthodox Christianity, in the centralized pre-Revolutionary Empire and Soviet Union and in the Wild East corruption of the post-Communist Russian Federation, Ukraine and Belarus. Like the other parts, the Russian Federation is very far from being an Orthodox country: alcoholism, over 600,000 abortions a year, corruption, divorce, ecological disaster, foul language (ABCDEF) simply reflect the lack of church-going among the baptised but still unChurched masses.
Superficial Orthodox Christianity leads but to the Ukraine. For there large numbers of baptised prefer a religion of Fascist nationalism and folklore to the real Orthodox Christian faith. The result of such shallowness is schism and civil war, with hatred expressed by so-called Orthodox Christians for real Orthodox Christians, who are threatened with persecution by the nationalists.
And if the Empire of Rus is not restored, then the end of the world will be at hand.
Written on this sixth day of October in the 2017th Year from the Incarnation in the County of Suffolk in the Eastern Region of the Kingdom of England in the Empire of Rus.
Source: Fr Andrew Phillips, http://www.events.orthodoxengland.org.uk/when-will-the-russian-federation-become-the-empire-of-rus/, opened 13 Oct. 2017
Holy Ælfred the Great, King of England, South Patron, pray for us sinners at the Souð, unworthy though we are!
Anathema to the Union!