So because of their own mistakes (the arab ones), Israel will think twice before giving back the Westbank, and it will all take more longer. Gaza was like a test to see if the arabs want to have peace, and to see if they are able (mature enough) to literary live side by side with Israel. Which apparently they are not.
U.S. to defend Syrian rebels with airpower, including from Assad (Reuters)
from the article: Iran nuclear summit urges Israel to sign non-proliferation treaty