Israel's military operations were disproportionate and harmed too many civilians:  The killing of over 1,400 Palestinians, mostly civilians, and more than 4,500 injuries, accompanied by the destruction of schools, mosques, houses, UN compounds and government buildings, which Israel has a responsibility to protect under the Fourth Geneva Convention, is not commensurate to the deaths caused by Hamas rocket fire. For 18 months Israel had imposed an unlawful blockade on the coastal strip that brought Gazan society to the brink of collapse. In the three years after Israel’s redeployment from Gaza, 11 Israelis were killed by rocket fire. And yet in 2005-8, according to the UN, the Israeli army killed about 1,250 Palestinians in Gaza, including 222 children. Throughout this time the Gaza Strip remained occupied territory under international law because Israel maintained effective control over it.(15) The targeting of civilians, whether by Hamas or by Israel, is potentially a war crime. Every human life is precious, but the numbers speak for themselves: 800 Palestinians, most of them civilians, were killed during Operation Cast Lead. In contrast, around a dozen Israelis were killed, many of them soldiers.(17) Precision strikes which avoided civilian deaths were never going to be possible in the crowded Gaza Strip. As Akiva Eldar argued: "The tremendous population density in the Gaza Strip does not allow a 'surgical operation' over an extended period that would minimize damage to civilian populations. The difficult images from the Strip will soon replace those of the damage inflicted by Qassam rockets in the western Negev. The scale of losses, which works in 'favor' of the Palestinians, will return Israel to the role of Goliath."(24)  It is notable that Israel is more culpable for the civilian deaths it causes than Hamas is with its rockets, as Israel had options (such as ending the blockade and negotiating with Hamas) which could have caused fewer civilian deaths, whereas Hamas did not. Rather Hamas responds as the disproportionately weaker party; the Palestinians were compelled to use the crude means at their disposal to free their lands from Israeli occupation, even if this meant being unable to target them well and some civilian deaths resulting.(25) Israel's Operation Cast Lead was less legitimate as it was not Israel's only option, and so cannot be regarded as proportionate. Furthermore, Israel's use of white phosphorous in Gaza was a humanitarian crime. The use of white phosphorous by Israel to shield its military movements in Gaza was a humanitarian crime, as the chemical causes serious health problems to civilians that inhale it. And, by all accounts, the chemical was inhaled by many Gazan civilians.(25)