The European Commission's financing of joint military procurement risks being challenged at the Court of Justice of the European Union, according to the text of a letter sent to Ursula von der Leyen and Antonio Costa by Roberta Metsola, President of the European Parliament, a document presented by the Euractiv.com website. The cited source states that through the respective document Roberta Metsola launched a firm warning addressed to the European Commission, drawing attention to the fact that