Why did al qaeda attack the US in 911?

Al-Qaeda attacked the U.S. on September 11, 2001, primarily due to its opposition to U.S. foreign policies in the Middle East, including support for Israel, military presence in Saudi Arabia, and involvement in the Gulf War. The group viewed these actions as an affront to Islam and an occupation of Muslim lands. Additionally, Osama bin Laden sought to provoke the U.S. into military responses that would rally Muslim support for Al-Qaeda’s cause. Ultimately, the attacks were intended to instill fear and draw attention to their grievances.