https://en.wikipedia.org/wiki/Euromaidan
https://en.wikipedia.org/wiki/Revolution_of_Dignity
https://www.realcleardefense.com/articles/2022/02/03/troop-to-task_a_russian_invasion_of_ukraine_815091.html
https://www.cnn.com/europe/live-news/ukraine-russia-news-02-27-22/h_421bd320351d78d3577bf40161a88bd9
https://www.cnbc.com/2022/03/03/russian-billionaires-lose-over-80-billion-in-wealth.html