https://www.socialeurope.eu/ukraine-war-zelenskyys-very-risky-move
https://www.project-syndicate.org/commentary/nato-at-75-unique-source-of-american-power-in-the-world-by-carla-norrlof-2024-04?barrier=accesspaylog
http://www.ipg-journal.de/regionen/europa/artikel/detail/ein-bisschen-mehr-als-freundschaft-2458/
https://www.bertelsmann-stiftung.de/fileadmin/files/user_upload/Keeping_friends_closer.pdf