https://ru.krymr.com/a/pavel-kazarin-zachem-putinu-ukraina/31608384.html
https://foreignpolicy.com/2021/12/13/biden-putin-ukraine-deter-russia-or-accept-defeat/
https://www.rosbalt.ru/russia/2021/12/10/1935140.html
https://novayagazeta.ru/articles/2021/12/08/prinuzhdenie-k-peregovoram