https://www.nytimes.com/2021/12/08/world/europe/nato-ukraine-russia-dilemma.html

https://www.nytimes.com/2022/04/24/us/politics/russia-ukraine-diplomacy.html

https://www.cbc.ca/news/world/canada-ukraine-russia-military-1.6267674

https://www.nytimes.com/2008/04/01/world/europe/01iht-prexy.4.11593095.html

https://www.cnn.com/2021/06/24/europe/uk-russia-hms-defender-crimea-gbr-intl/index.html

https://www.newsweek.com/netherlands-says-russian-fighter-jets-engaged-mock-attacks-against-navy-black-sea-1605268

https://www.pbs.org/newshour/world/president-of-belarus-offers-to-host-russian-nuclear-weapons

https://apnews.com/article/europe-russia-coronavirus-pandemic-health-business-3581667136e1cabd6a19d5fcf5bec531

https://www.theguardian.com/world/2021/dec/21/putin-warns-of-possible-military-response-to-aggressive-nato-russia

https://www.theguardian.com/world/2021/nov/30/russia-will-act-if-nato-countries-cross-ukraine-red-lines-putin-says

https://www.dailymail.co.uk/news/article-9720499/Russia-directly-bomb-HMS-Defender-sails-close-Crimea-minister-warns.html

https://www.businessinsider.com/russian-fighters-harassed-dutch-frigate-in-black-sea-defense-ministry-2021-6

https://www.euronews.com/2022/01/15/sweden-redeploys-troops-to-the-island-of-gotland-near-russia

https://threadreaderapp.com/thread/1482563390446845959.html

https://www.pbs.org/newshour/world/u-s-and-nato-reject-russian-demand-that-alliance-not-admit-new-members

https://www.theguardian.com/uk-news/2022/jan/08/uk-military-chief-warns-of-russian-threat-to-vital-undersea-cables

https://www.dailystar.co.uk/news/latest-news/uk-troops-could-head-ukraine-23934565

https://apnews.com/article/black-sea-ukraine-europe-government-and-politics-ea5d4e704ecce23a4d7aa7196f04ba9f