Chechens
In 1989, 73.4% spoke Russian, though this figure has declined due to the wars for a large number of reasons (including the lack of proper education, the refusal to learn the language, and the mass dispersal of the Chechen diaspora due to the war). Chechens in the diaspora often speak the language of the country they live in (English, German, Arabic, Polish, Georgian, etc.).
Ossetians
The Ossetians or Ossetes (; , '; дигорæ, дигорæнттæ, ') are an Iranian ethnic group of the Caucasus Mountains, indigenous to the ethnolinguistic region known as Ossetia.
They speak Ossetic, an Eastern Iranian (Alanic) language of the Indo-European languages family, with most also fluent in Russian as a second language. The Ossetian language is neither closely related to nor mutually intelligible with any other language of the family today. Ossetic, a remnant of the Scytho-Sarmatian dialect group which was once spoken across the Pontic–Caspian Steppe, is one of the few Iranian languages inside Europe.