The introduction provides an overview of the book, presents the core arguments, highlights the contribution to current literature, explains the book’s methods and sources, and outlines the structure of the book. The overarching argument of the book is that intelligence cooperation was so beneficial for all parties that European authorities therefore let Mossad carry out its operation and tolerated the use of its intelligence to kill Palestinians. Hence, the book demonstrates that the extensive advantages that European agencies gained through Club de Berne intelligence-sharing led them to turn a blind eye towards, or even tacitly support, Israeli covert actions on their respective territories.