https://novayagazeta.ru/articles/2021/12/10/s-vidom-na-kreml
https://carnegie.ru/commentary/85935
https://www.nytimes.com/2021/12/05/world/europe/putin-russia-ukraine-troops.html
https://jamestown.org/program/chechnya-ingushetia-again-at-odds-over-long-disputed-border/
https://www.kommersant.ru/doc/5100564