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.).
Caucasus Emirate
Following the dissolution of the Soviet Union, Chechen nationalists, led by Dzhokhar Dudayev, declared the secession of Chechnya from Russia as an independent Chechen Republic of Ichkeria (ChRI). Following two devastating wars with the Russian Federation in the nineties, the ChRI fought an insurgency against the Russian forces and their Chechen allies from 2000, initially under the leadership of Aslan Maskhadov. Although the ChRI was largely founded by Sufi Muslims motivated by nationalism, over time the literalist Salafist form of Islam became increasingly popular with some Chechens, leading to a schism between nationalists and Salafists. As many of the original nationalist figures were killed by Russian forces, the insurgency took on an increasingly Salafist tone embodied by commanders like Shamil Basayev and the Arab fighter Khattab. Many of the surviving nationalists gave up the fight, and by the time Dokka Umarov was declared President of Ichkeria in June 2006, Islamists held increasing influence in the movement.