The term hybrid warfare is both controversial and debated. Those who favor the use of the term usually use widely different definitions of it. This makes the term problematic to use in an official and academic context, which may contribute to unjustified policy decisions. My thesis aims at using three existing theoretical definitions to identify a more sustainable definition of the hybrid warfare concept. And at the same time contribute to the debate about the usefulness of the concept.    The thesis analyzes three theoretical perspectives of the hybrid warfare concept, by adopting a conceptual study approach founded in Giovanis Sartori's theoretical framework. The result shows that a more sustainable definition of hybrid warfare primarily comprises the coordination of funds and methods for achieving political purposes. Based on this result can hybrid warfare primarily be understood as a management perspective.