Maybe you should read the Bush Sharon letters. http://www.haaretz.com/hasen/pages/ShArt.jhtml?itemNo=415475&contrassID=0&subContrassID=0 "The United States understands that after Israel withdraws from Gaza and/or parts of the West Bank, and pending agreements on other arrangements, existing arrangements regarding control of airspace, territorial waters, and land passages of the West Bank and Gaza will continue." The Israeli government removing its citizens from Gaza was an economic decision. It is cheaper to man the walls rather then maintain the occupation from the inside. Israel "left" nothing for the Palestinians, except some synagogues. The hot houses were PURCHASED. That was not a concession. And except for the negotiated release of some women, no prisoners have been released for Gaza. Again, Israel got something in return. That is not a concession. Read the letters. Read the Israeli government websites.
U.S. warns governments, bankers Iran sanctions still in place (Reuters)
from the article: Four Gaza factions halt rocket fire, in bow to Hamas