Question

What was the reasoning for the attack of 9/11

Answer 1

 they were apparently acting in retaliation for America’s support of Israel, its involvement in the Persian Gulf War and its continued military presence in the Middle East.

Answer 2

On the day of 9/11, the Taliban foreign minister told the Arab television network Al Jazeera: "We denounce this terrorist attack, whoever is behind it." The United States requested the Taliban to shut down all al-Qaeda bases in Afghanistan, open them to inspection and turn over Osama bin Laden.