USA HISTORY

Detailed explanation-1: -Osama bin Mohammed bin Awad bin Laden (10 March 1957 – 2 May 2011), also transliterated as Usāmah bin Laden, was a Saudi Arabian-born militant, the mastermind behind the September 11 attacks, and founder of the Pan-Islamic militant organization al-Qaeda.

Detailed explanation-2: -At all relevant times, al Qaeda was led by its emir, Usama Bin Laden. Members of al Qaeda pledged an oath of allegiance (called a “bayat") to Usama Bin Laden and al Qaeda.

Detailed explanation-3: -Osama bin Laden and his deputy, Ayman al-Zawahiri, were the leaders who were considered the operational commanders of the organization.