https://education.nationalgeographic.org/resource/mongol-horde-unstoppable-force/
https://carolinaasiacenter.unc.edu/wp-content/uploads/sites/8684/2018/11/Genghis-Khan-.pdf
https://courses.lumenlearning.com/atd-herkimer-westerncivilization/chapter/the-mongol-threat/#:~:text=The%20Mongol%20forces%20began%20a,Mongol%20rule%20in%20the%20region.
https://www.historyextra.com/period/medieval/genghis-khan-mongol-warlord-conquered-world-china-medieval/
https://encyclopedia.pub/entry/34746
https://historica.fandom.com/wiki/Siege_of_Urgench
https://history.howstuffworks.com/history-vs-myth/genghis-khan-murder.htm
https://encyclopedia.pub/entry/34746
https://en.wikipedia.org/wiki/Al-Musta%27sim
https://www.toptenz.net/10-brutal-facts-merciless-genghis-khan.php
https://en.wikipedia.org/wiki/Mongol_invasion_of_the_Khwarazmian_Empire
https://www.history.co.uk/articles/brutal-acts-of-genghis-khan-and-his-successors#:~:text=The%20massacre%20of%20Otrar&text=The%20Mongols%20executed%20Inalchuq%20by,plain%20by%20the%20victorious%20Mongols.
https://en.wikipedia.org/wiki/Inalchuq
https://bigthink.com/the-past/genghis-khan-insult/
https://en.wikipedia.org/wiki/Subutai
https://en.wikipedia.org/wiki/Cumans
https://archive.org/details/Boyle1968IlKhansCHIran05/page/n8/mode/1up?view=theater
https://uzbek-travel.com/about-uzbekistan/facts/termez_part_2/
https://www.reddit.com/r/history/comments/ebz6az/why_were_mongols_so_brutal/
https://www.britannica.com/summary/Key-People-of-the-Mongol-Empire#:~:text=Encyclop%C3%A6dia%20Britannica%2C%20Inc.,continental%20empires%20of%20all%20time.
https://www.history.co.uk/articles/brutal-acts-of-genghis-khan-and-his-successors#:~:text=The%20massacre%20of%20Otrar&text=The%20Mongols%20executed%20Inalchuq%20by,plain%20by%20the%20victorious%20Mongols.
https://www.toptenz.net/10-brutal-facts-merciless-genghis-khan.php
https://www.quora.com/Did-the-Mongols-always-ask-the-neighbouring-nations-to-surrender-before-the-conquest-or-did-they-just-make-surprise-attacks
https://historycollection.com/the-mongols-dined-atop-their-live-enemies-and-other-fascinating-historic-facts/
https://en.wikipedia.org/wiki/Battle_of_the_Kalka_River