In 2005 when Ariel Sharon completely ended the occupation of the Gaza Strip, Hamas responded by showering thousands of rockets on civilian targets in Israeli cities.And now, in 2010, the Palestinian leadership is refusing to sit down and negotiate with the Netanyahu government unless Israel accepts its “preconditions.”a recent article on the official website of the Palestinian Authority claiming that there is no hard evidence of any Jewish connection to the Western Wall, Judaism’s holiest site. Instead, it claims that “this wall is the place where the Prophet Muhammad tethered his winged steed, Buraq, during his miraculous overnight journey from Mecca to Jerusalem in the seventh century.” The Palestinian Authority article asserts that “the Al Buraq Wall is the western wall of Al Aksa, which the Zionist occupation falsely claims ownership of and calls the Wailing Wall or Kotel.” In other words, the Palestinian leadership expects Israelis to believe Muslim theological claims over Jewish archaeological evidence. Following a request by the US the study was removed from the PA website, only to resurface days later on the PA's news agency Wafa. Moreover, the Palestinian Authority refuses to accept Israel as the nation-state of the Jewish people, and refuses to end the repeated incitement against Jews that are a staple of the Palestinian Authority controlled media.It is also no wonder that many Israelis have concluded that the Palestinian leadership has marginalized the Palestinians. What can the PA now offer Israel in exchange for the end of the occupation and the division of Jerusalem? Not peace in the north, which is controlled by Iran’s wholly owned subsidiary Hizbullah. Not peace in the west, which is controlled by Hamas, another Iranian surrogate. All the Palestinian Authority can now offer Israel is peace on the relatively quiet eastern border. And it would be an uncertain and incomplete peace even with the PA, since there is no assurance that it will retain control over the West Bank. And even if it manages to isolate Hamas in Gaza, there is no guarantee that terrorist groups will not use the West Bank as a launching pad for rockets and other forms of terrorism.The Palestinians have employed two weapons as alternatives to actually sitting down and negotiating a two-state solution. The first was the violence incited by Arafat after he rejected the Barak-Clinton offer of 2000-2001. Instead of continuing to negotiate, Arafat ordered the beginning of a second Intifada with its suicide bombings and the deaths of thousands of Palestinians and Israelis. This tactic got the Palestinians nothing but bloodshed, and the continuing support of the hard Left. It lost them the support of the Israeli peace movement and drove many Israeli moderates to the Right. Following Arafat’s “untimely” death - untimely in the sense that if he had died a few years earlier, it would have ended by now - the Palestinian Authority shifted from guerilla warfare to guerilla “lawfare.”Under this tactic, the Palestinian Authority has taken advantage of the United Nations’ biased machinery of international “human rights” to push Israel into the “dock” as a “criminal state,” accusing it of war crimes every time it takes any action in defense of its citizens, whether it be building a security barrier against terrorists, treating terrorists as combatants and targeting them for military attack, or defending its civilians against rocket attacks.This “lawfare” tactic is also backfiring. It is making it more difficult for Israel to end the occupation, because many Israelis fear that leaving the West Bank will bring the same violent response that followed after Disengagement from Gaza: namely rocket attacks on Israeli civilians. And if Israel were to seek to protect its civilians, as it did in Gaza, it would be accused of war crimes and hauled in front of the International Criminal Court.A related weapon, now being widely used on university campuses around the world, is to challenge Israel’s legitimacy as a state - even within its pre-1967 borders. This tactic too is making it harder for Israel to make peace, because many Israelis fear that any agreement is only a tactic that will lead to further attacks on the legitimacy of the Jewish state and calls for a single bi-national state, which would inevitably become yet another Muslim Arab state.To hold the Palestinian leadership responsible for the continuing Israeli occupation of the West Bank is not to blame the victim. The Palestinian people have indeed been victims – of their own leadership and the refusal of so many Palestinians to take “yes” for an answer when they have been offered an end to the occupation, choosing violence, lawfare and rejection of Israel as the nation-state of the Jewish people instead.The time has come for those Palestinians seeking peace to take control of their own destiny and demand that their leaders sit down, with no preconditions, and negotiate an end to the occupation and the implementation of a two-state solution.Professor Alan Dershowitz’s latest book is a novel, The Trials of Zion.