The Russell Tribunal on Palestine

"The jury had little difficulty concluding that the pattern of attack, as well as the targeting, amounted to a series of war crimes that were aggravated by the commission of crimes against humanity. These included the imposition of collective punishment upon the entire civilian population of Gaza, in flagrant and sustained violation of Article 33 of the Fourth Geneva Convention. A further notable legal finding was the rejection of the central Israeli claim that it was acting in self-defense against rocket attacks from Gaza. There are several reasons for reaching this conclusion: under international law, the claim of self-defense cannot be used in justifying response to resistance mounted by an occupied people, and from the perspective of international law, Gaza remains occupied due to persisting Israeli control despite Israel's purported "disengagement" in 2005 (more properly characterized as a military redeployment)." (thanks Amir)