The organization's

The organization's main immediate goal is the overthrow of what it sees as the corrupt and heretical governments of Muslim states, and their replacement with the rule of Shari'a (Islamic law). Al-Qaeda is intensely anti-Western, and views the United States in particular as the prime enemy of Islam. Bin Laden has issued several "fatwas" or religious rulings calling upon Muslims to take up arms against the United States. He, or stand-ins for him, continue to release videotaped messages threatening or calling for attacks against the United States, Western regimes, Israel and Muslim regimes that do not subscribe to his dogmas. They attempts to radicalize existing Islamic groups and create Islamic groups where none exist. They advocate destruction of the United States, which is seen as the chief obstacle to reform in Muslim societies. They supports Muslim fighters in Afghanistan, Algeria, Bosnia, Chechnya, Eritera, Kosova, Pakistan, Somalia, Tajikistan and Yemen.

http://en.wikipedia.org/wiki/Al-Qaeda