A groundbreaking new book titled *L’Affaire Ben Barka. La fin des secrets* (“The Ben Barka Affair: The End of Secrets”) has unveiled Israel’s covert involvement in the 1965 assassination of Mehdi Ben Barka, a prominent Moroccan opposition leader. Ben Barka, the exiled head of the left-wing National Union of Popular Forces (UNFP), was abducted in Paris on October 29, 1965, and his body was never recovered. While the Moroccan state had long been suspected due to Ben Barka’s opposition to King Hassan II, the book reveals the extent of Israel’s Mossad spy agency’s role in the operation. Authored by journalists Stephen Smith and Ronen Bergman, the book draws on previously classified documents to detail the collaboration between Mossad and Moroccan security forces. The operation was reportedly overseen by Ahmed Dlimi, deputy director of Moroccan security, and Rafi Eitan, a key Israeli intelligence figure. Mossad operatives allegedly procured tools and corrosive materials in Paris, including sodium hydroxide, to dispose of Ben Barka’s body. After his abduction, Ben Barka was held south of Paris and later interrogated and drowned by Dlimi, who documented the killing to confirm its completion. The book also highlights the covert ties between Morocco and Israel, which have persisted since the 1960s and were formalized in 2020 with U.S. recognition of Moroccan sovereignty over Western Sahara. This alliance has fueled trade and defense cooperation, including the transfer of F-35 jet components used in Israel’s Gaza operations, sparking widespread anger in Morocco over Israel’s actions in Gaza.