Marrero argues that the transformation of global terrorism into insurgent groups has fundamentally altered the nature of modern conflicts, particularly in the Middle East. These "soldiers" represent a persistent threat not only to international stability but specifically to their home countries.
For more detailed academic reviews, you can explore the Spanish Yearbook of International Law or the analysis hosted by Dialnet .
Inmaculada Marrero Rocha's book, (Tecnos, 2020), is a comprehensive study on the evolution and impact of foreign fighters in contemporary international security. Key Themes and Analysis
: Marrero identifies modern foreign fighters as a distinct category, differentiating them from historical "libertarian heroes" seen in conflicts like the Spanish Civil War or the Greek War of Independence.
