List of Sources:

https://www.nytimes.com/2022/02/02/world/europe/us-nato-response-russia-demands.html

https://www.nato.int/cps/en/natohq/topics_37750.htm

https://apnews.com/article/russia-ukraine-business-russia-vladimir-putin-middle-east-44ccc883cce24b0199118549911013cc

https://www.aljazeera.com/news/2022/1/28/putin-west-has-not-addressed-main-concerns-in-ukraine-standoff

https://www.vox.com/2022/1/30/22908600/ukraine-crisis-putin-russia-one-people-myth-nato-europe

https://www.britannica.com/place/Ukraine/The-crisis-in-Crimea-and-eastern-Ukraine

https://www.theguardian.com/world/2015/jan/18/russia-rouble-threat-nine-countries-remittances