Renan Bendel Vaughan (master’s student in European Union Law at the School of Law of University of Minho and ENDE Research Grant Holder – UMINHO/BIM/2026/40)

Setting the scene: a political moment and a legal gap

The concept of hybrid threats has become one of the most frequently invoked analytical categories in contemporary European discourse in matters of security. Since its consolidation in the institutional vocabulary of the EU in sequence of the Joint Framework of 2016,[1] the expression migrated progressively from the strategic-military domain to the field of Union law, informing legislative instruments in matters of cybersecurity, critical infrastructures’ resilience and protection of the democratic institutions. However, its legal operability remains uncertain, given that the concept is invoked with increasing frequency in soft-law instruments and in policy frameworks, without this invocation being accompanied by a legal definition sufficiently precise to underpin the normative requirements placed upon it.

The Conclusions of the Council of the EU of 16 March 2026 on advancing the European Union’s capacity to counter hybrid threats constitutes the most recent institutional moment in this evolutive framework.[2] The Council of EU condemned the persistent hybrid threats of state and non-state actors aimed at compromising the security and stability of the Union and its Member States, specifically identifying the sabotage on critical infrastructures, the malicious cyber activities, the foreign information manipulation and interference (FIMI), the election interference, and instrumentalisation of migration. It called for the utmost implementation of the Directives NIS2 and CER, it highlighted the importance of the Cyber Blueprint as a mechanism of collective response and drew attention to the malicious use of emerging technologies, including AI and quantic technologies.

Ana Cardoso (PhD candidate & Master’s in European Union Law at the School of Law of University of Minho. FCT research scholarship holder – 2025.06747.BD.)

I.

On March 23, 2026 the European Commission took the final procedural step required for provisional application of the EU-Mercosur interim Trade Agreement (“iTA”), by notifying the Mercosur countries with a “note verbale”.[1] This means that as of May 1, 2026, the iTA has started being provisionally applied, despite the European Parliament’s decision to ask for the European Court of Justice’s (“CJEU”) opinion on whether the EU-Mercosur Free Trade Agreement (“EMTA”) is in conformity with the Treaties.[2]

This was possible because the EMTA is divided into two main documents: (i) the iTA covering trade liberalisation and (ii) a broader comprehensive Partnership Agreement; the first can take effect while the second faces the hurdles of full ratification.[3]

Given this somewhat unprecedented decision by the Commission – which ignores a long-standing gentleman’s agreement of institutional respect between the Commission and the Parliament – it is worth questioning if this provisional application might end up jeopardising the EU’s ambitious climate and environmental goals or if, on the other hand, the internal legal framework in this area is strong enough to prevent indirect backtracking.