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https://www.ng.ru/armies/2021-10-07/2_8272_fleet.html
http://region.expert/landscape/
https://jamestown.org/program/the-realities-of-russian-military-shipbuilding-part-one/
https://jamestown.org/program/clashes-intensify-between-moscow-and-circassians-on-key-issues/
https://ru.krymr.com/a/pereyezd-krym-sibir-grazhdane-rossii/31491485.html