https://www.iai.it/sites/default/files/iaip1924.pdf
https://www.cesifo-group.de/DocDL/ifoDD_18-01_03-09_Ochsner.pdf
https://ec.europa.eu/info/sites/default/files/joint_communication_-_defence_investment_gaps_analysis_and_way_forward_0.pdf
https://www.realclearworld.com/articles/2023/03/08/as_nato_grows_so_do_its_problems_886163.html?utm_source=newsletter&utm_medium=email&utm_campaign=09%2F03%2F2023%20%20