https://www.uscc.gov/research/chinas-position-russias-invasion-ukraine#:~:text=%5BSanctions%5D%20The%20Wall%20Street%20Journal,these%20exports%20have%20military%20applications.

https://www.nytimes.com/2022/03/13/us/politics/russia-china-ukraine.html

https://russiancouncil.ru/analytics-and-comments/analytics/kndr-i-yadernoe-nerasprostranenie-smertelnyy-udar-ili-shokovaya-terapiya/

https://thebulletin.org/2019/04/what-russia-thinks-about-north-koreas-nuclear-weapons/

https://www.consilium.europa.eu/en/infographics/impact-sanctions-russian-economy/#:~:text=According%20to%20the%20IMF%20estimates,exports%20will%20increase%20by%200.24%25.

https://www.ft.com/content/8b14a460-4224-4922-a52f-7400edc2739a

https://www.state.gov/u-s-security-cooperation-with-ukraine/

https://www.cfr.org/article/how-much-aid-has-us-sent-ukraine-here-are-six-charts

https://www.nato.int/cps/en/natohq/topics_192648.html