I should say the Russian Orthodox Church.
The Russian Orthodox Church and the Russian state have worked hand in glove since the days of the Tsars. Not even Stalin dared ignore this fact during WWII.
At least since the time of Boris Godunov when the prelates of the Church commanded the Russian masses to accept him as Tsar, the Orthodox Church has presided as the crowning authority of the Cap of Monomakh.
And now they wish to extend their authority to the United States. No joke, there is a new Russian church in my small Southern capital city complete with the three tiered cross. On their website they invite us locals to come to the true form of Christianity. Not even the Greeks are that presumptuous.