From the comments below this video:
"In Assyrian Land and in Central Asia live Orthodox Turks."
"Turkish tribes for centuries in the Russian Empire took Orthodoxy. There are entire Turkish people, who are Christians. There are saints of Turkish origin and Bulgarian Abram Peter Odynsky."
"N": please, see our tag about Islam.
From the channel of the Асан Капузеев in YT:
The preaching of Christians in Russia: