Reason #1 I support the disengagement

Well Here is a quote right out of the Jerusalem Post

The army should respond to terrorism with a heavier hand following Israel's withdrawal from Gaza, IDF Chief of Staff Lt. - Gen. Dan Halutz told the Knesset Foreign Affairs and Defense Committee Tuesday.
"The chief of Staff [Halutz] said very clearly, and very accurately, that the IDF has a broad spectrum of military responses to terrorism," said former deputy defense minister Ephraim Sneh. "Which of these means will be elected in the future in response to Palestinian fire is a decision that will have to be taken at that given moment."
In response to fears that Palestinians mortars were within striking distance of several major Israeli cities, Halutz answered, "We too have mortars," and reportedly told the committee that the army would not hesitate to use the arsenal of weaponry at their disposal.
MK Ehud Yatom added that once every soldier had left Gaza, it was likely that the IDF would begin instituting harsher responses towards hostile fire.