https://poterealpopolo.org/potere-al-popolo/manifesto/
https://www.project-syndicate.org/commentary/trump-spurs-european-defense-integration-by-joseph-s–nye-2017-07
https://www.politico.eu/article/germany-9-euro-ticket-train-public-transport/?utm_source=POLITICO.EU&utm_campaign=41557aa1fc-EMAIL_CAMPAIGN_2022_10_14_11_29&utm_medium=email&utm_term=0_10959edeb5-41557aa1fc-190380769
https://economy-finance.ec.europa.eu/system/files/2022-07/ip180_en.pdf