Read the whole text yourself...

Here is the full text of the letter form al Zawahiri to al Zarqawi. Here are his goals for the jihadists in Iraq.

The first stage: Expel the Americans from Iraq.

The second stage: Establish an Islamic authority or amirate, then develop it and support it until it achieves the level of a caliphate- over as much territory as you can to spread its power in Iraq, i.e., in Sunni areas, is in order to fill the void stemming from the departure of the Americans, immediately upon their exit and before un-Islamic forces attempt to fill this void, whether those whom the Americans will leave behind them, or those among the un-Islamic forces who will try to jump at taking power.

There is no doubt that this amirate will enter into a fierce struggle with the foreign infidel forces, and those supporting them among the local forces, to put it in a state of constant preoccupation with defending itself, to make it impossible for it to establish a stable state which could proclaim a caliphate, and to keep the Jihadist groups in a constant state of war, until these forces find a chance to annihilate them.

The third stage: Extend the jihad wave to the secular countries neighboring Iraq.

The fourth stage: It may coincide with what came before: the clash with Israel, because Israel was established only to challenge any new Islamic entity.