sentences:  He is most remembered for his ill-conceived prewar assessment that Egypt and Syria would not attack (also known as "The Concept"), despite intelligence to the contrary.The postwar Agranat Commission, set to investigate the reasons for the costly war, found Zeira to be negligent of his duty, and he resigned.In 2004, former Mossad Director-General Zvi Zamir accused Zeira of leaking the identity of Ashraf Marwan, an Egyptian billionaire who served as a Mossad informant.