Question

Why did Osama Bin Laden form al Qaeda in the late 1990s?

Answer 1

He wanted to launch a world jihad

Explanation:

Osama Bin Laden wanted to launch a world jihad against the United States because of the occupation of Saudi Arabia(military troops were stationed in Saudi Arabia) an holy land of Islam, because of the repeated aggressions against muslim states and the mistreatment of Palestinians through the support of Israel.

Answer 2

Osama Bin Laden wanted form a modern caliphate which would rule the world and to destroy the Great Satan the United States.

Explanation:

9/11 was picked as the day of the attack because in 1911 the last caliph was deposed by the young Turks that wanted a democratic Turkey. Osama Bin Laden felt that the Islam required a Caliph. He saw western democracies as the enemies of traditional Islam.

Osama Bin Laden extrapolated Islamic Law that declares Mecca and Medina as holy cities to all of Suadia Arabia. Islamic Law says that if an infidel sets foot in the Holy Cities the City must be cleansed with the blood of the interloper. By extrapolating Islamic Law to all of the nation of Saudia Arabia Bin Laden preached that only by shedding the blood of Americans could the Holy Land of Islam be cleansed.

This view of Islamic Law was used an rational to declare a World Wide Jihad on Western democracies, especially the United States.
The goal of the Jihad was to reestablish the Islamic caliphate. The initial goal was to remove Western influence in all Islamic countries.
The next goals were to destroy Western democracies and the power of the West. The final goal was a world wide caliphate where Islam would rule the entire world