https://media.defense.gov/2022/Mar/28/2002964702/-1/-1/1/NDS-FACT-SHEET.PDF
https://sgp.fas.org/crs/natsec/RL33110.pdf
https://www.gmfus.org/news/finland-cements-its-nato-embrace
https://futuros.gob.es/sites/default/files/2023-09/RESILIENTEU2030.pdf