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https://www.nato.int/en/about-us/official-texts-and-resources/official-texts/2008/04/03/bucharest-summit-declaration
https://theconversation.com/how-can-europe-meet-the-challenge-posed-by-the-retreat-of-the-us-274687
https://www.news.admin.ch/de/nsb?id=83705
https://blogs.lse.ac.uk/europpblog/2025/12/03/the-eus-geopolitical-dream-is-dying-in-its-own-neighbourhood/
https://www.foreignaffairs.com/sites/default/files/2024-08/ForeignAffairs_GraduateSchoolForum_2024.pdf
https://www.pwc.com/co/es/publicaciones/assets/world-in-2050-final-report-february-2015-colombia.pdf
https://english.news.cn/20260119/a8bcb301ed704bd3bc2883cd3b6a77da/c.html
https://securityconference.org/assets/02_Dokumente/01_Publikationen/2025/MSR_2025/Multipolarization_%E2%80%93_Munich_Security_Report_2025.pdf
https://blogs.lse.ac.uk/europpblog/2025/12/18/uk-eu-strategic-partnership-cooperation-architecture/