This article analyzes the current state of collaboration between NATO and the EU, with particular reference to the hybrid conflict sector. There has always existed a close relationship of interdependence between the two organizations. In 2016, this interdependence experienced a collaborative surge with the signing of a joint declaration at the Warsaw Summit. Since then,NATO and the European Union have actively collaborated in various sectors, including hybrid warfare. In the future, both organizations will need to improve the exchange of information and intelligence collaboration. However, this analysis aims to point out that NATO and the EU, if they wish to limit the scope of their opponents’ manoeuvrability, since hybrid conflict tends to develop below the threshold of what is generally accepted as the definition of armed conflict, will have to work together to outline a new legal framework that redefines the definition of armed conflict
