https://www.belfercenter.org/sites/default/files/GreatMilitaryRivalry_ChinavsUS_211215.pdf
https://ec.europa.eu/commission/sites/beta-political/files/police_judicial_cooperation_in_criminal_matters_0.pdf
https://theconversation.com/how-can-europe-meet-the-challenge-posed-by-the-retreat-of-the-us-274687
https://ukandeu.ac.uk/unpacking-the-iran-saudi-agreement/?mc_cid=71c929e541&mc_eid=815b1928ec