Hello! Ignatius. Thanks for your reply, sorry but my answer will be long.
I would have preferred the blessed hope, the return of our Lord and Saviour, Jesus Christ. Which is why we are repeatedly told to pray 'Come Lord Jesus come'.
Until then I think this is good advice:
1 Timothy 2:1-2
I urge, then, first of all, that petitions, prayers, intercession and thanksgiving be made for all people— for kings and all those in authority, that we may live peaceful and quiet lives in all godliness and holiness.
Our aim is to live peaceful and quiet lives in godliness and holiness.
I'm not sure this involves taking power or trying to turn a denomination into a state church, which invariably fails.
Was it not one of your Orthodox compatriots, Loukas Notaras who reportedly said '
Better the Sultan's Turban than the Papal Tiara'?
Personally I would not like to live in a Muslim country, I would prefer a state where there is freedom of religion. The separation of church and state, or religion and state is a good thing IMHO. In Scotland in past decades there was a lot of sectarianism, Northern Ireland being even worse, sectarianism which is not good. Coming from a Catholic family, in a nominally Presbyterian-state country I have encountered prejudice, abuse and discrimination from people. Some companies in the 90s still had an official state backed no Catholics Policy. When my immediate family came out of the Catholic Church, for doctrinal reasons we were ostracized by Catholic family members who never spoke to us again. I have experienced the deadening hand of both Protestantism and Catholicism when they seek political power, it is the opposite of the Gospel.
Talking of Spain, what I have studied of Spanish History is quite a sad tale in every age. Visigothic Spain had a lot of darkness, persecution of Catholic by Arian, of Jews by both. Muslim Spain had a lot of darkness. Spain after the Reconquista had extreme bouts of violence and of persecution. The manner in which the Jews were treated in Post-Reconquista Spain was second perhaps only to the Third Reich in it's evil. The Spanish Inquisition is still a by-word for brutality and corruption even today. And Spanish History during the civil war in the 20th Century, atrocities committed against professing Christians and by professing Christians in the pursuit of political ideals, atrocities too graphic to recount here.
I think Spain needed freedom of conscience Millenia ago.
Interesting Q re the Vikings, people known for their rapacious brutality. The Viking age began in 795 AD I think when the Holy Isle of Iona was sacked and ended in 1263 when Scotland defeated the last Viking King, Magnus at the Battle of Largs, after an invasion of terror. The Vikings began to convert to Christianity around 900AD, for example Rollo, an ancestor of mine, converted in 911 to get lands in Normandy.
That means that for the majority of the Viking age the people committing the rapine were professing Christians. Indeed one Viking Chieftan famed for his savagery, Harold Hardrada, was an anointed Christian King. I guess there is an advantage to being killed by a Christian Viking than a Pagan Viking? Cynical, superficial conversions to get land, influence and power, the type of conversion generated by Christian Nationalism.
Power should be transferred to honest, elected representatives, with a system of checks and balances to weed out malfeasance. There should be no compulsion in matters of faith and no state religion. No-one should gain political advantage by feigning allegiance to a faith system.
Jesus said his Kingdom was not of this world for good reason. This world cannot bear His Kingdom. Only when the King comes back.
God Bless You