Mohammed Diab Ibrahim al-Masri (; 12 August 1965 – 13 July 2024), better known as Mohammed Deif (), was a Palestinian militant who served as the sixth commander of the Izz al-Din al-Qassam Brigades. He succeeded Salah Shehade following the latter's assassination in an Israeli airstrike in July 2002, until his assassination in July 2024. He was succeeded by Mohammed Sinwar, the younger brother of Yahya Sinwar. He was a central figure in the Gaza war and one of the masterminds of the October 7 attacks, alongside Yahya Sinwar. Wikipedia
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