In this unprecedented history of intelligence cooperation during the Cold War, Aviva Guttmann uncovers the key role of European intelligence agencies in facilitating Mossad's Operation Wrath of God. She reveals how, in the aftermath of the 1972 Munich Olympics Massacre, Palestinians suspected of involvement in terrorism were hunted and killed by Mossad with active European cooperation. Through unique access to unredacted documents in the Club de Berne archive, she shows how a secret coalition of intelligence agencies supplied Mossad with information about Palestinians on a colossal scale and tacitly supported Israeli covert actions on European soil. These agencies helped to anticipate and thwart a number of Palestinian terrorist plots, including some revealed here for the first time. This extraordinary book reconstructs the hidden world of international intelligence, showing how this parallel order enabled state relations to be pursued independently of official foreign policy constraints or public scrutiny.