https://dserver.bundestag.de/btd/20/057/2005700.pdf
https://media.defense.gov/2022/Nov/29/2003122279/-1/-1/1/2022-MILITARY-AND-SECURITY-DEVELOPMENTS-INVOLVING-THE-PEOPLES-REPUBLIC-OF-CHINA.PDF
https://www.brookings.edu/wp-content/uploads/2021/04/FP_20210412_china_arctic.pdf
https://www.brookings.edu/articles/the-return-of-the-enemy/