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.).
Chechens
Genetic tests on Chechens, though sparse and not sufficiently thorough so far, have shown roots mostly in the Caucasus as well as slight connections to and influences from the Middle East as well as Europe. As is the case with many other Caucasian peoples, Chechens are broadly connected with Europe on the Y-DNA (the paternal side) from all European regions, but narrowly closer to Western Europe in terms of mitochondrial DNA (the maternal side).