The Orthodox Church (Greek and Russian) are far closer to Communion with Rome than ever in History. I attended the Ravenna Conference briefing by the principal Orthodox and Roman negotiators at Catholic University following. Just some details need be worked out. Orthodox agreement that the Bishop of Rome is the 1st among Bishops was signed years ago. Principal reasons for communion were the rapid rise in Secularism and anti-religious propaganda, and that The Pope and the Patriarch of Russian Orthodox are bot German.
Let’s look to the future, not to the past. We are the 2 Lungs of The Church Our Lord Founded, with the same Sacraments and principals. The Roman Mass continues the Kyrie Eleison, Christe Eleison historically. The Divine Liturgy and The Mass have the Same principal Holy parts. :byzsoc:

I was fortunate to attend the world Premier of the Orthodox Christmas Oratorio at the Basillica of Immaculate Conception, DC, Televised by Russian and several TV and Media Networks. The Orchestra was the Russian Army Central Command Symphony Orchestra, and 2 or 3 Russian Choirs: One a Russian Orthodox Seminarian Choir. I was totally Awestruck, breathless, standing with Thousands. The Composer attended, as simple Priest: the Orthodox Metropolitan of Europe, Vienna.
I have to get a copy. It was a Once in Lifetime World Premier, Historic.