Netanyahu reiterated to an assembly of Jewish groups his view that peace negotiations should begin with no preconditions. He made no new proposals on constraining Jewish settlements in the West Bank.

Palestinian officials insist that Israel freeze settlement activity before peace talks resume.

"I believe there is no time to waste; we need to move toward peace with a sense of urgency and with a sense of purpose," he said in a speech to the Jewish Federations of North America in Washington.

"I want to make this clear: My goal is not to have endless negotiations. My goal is not negotiations for the sake of negotiations. My goal is to achieve a permanent peace treaty between Israel and the Palestinians."

He also said Israel was willing to make "great concessions for peace," without sacrificing its security.

Netanyahu said there had been an "unmatched boom" of economic activity in the West Bank, "and this has made life better for ordinary Palestinians. For the first time in years, businesses, banks, industry is sprouting - restaurants, theaters, shopping malls are overflowing. Thousands and thousands of Palestinian jobs are being created. I think we can do a lot more, and I intend to do a lot more."

Addressing by name the Palestinian Authority leader, Mahmoud Abbas, Netanyahu added: "Let us seize the moment to reach a historic agreement. Let us begin talks immediately."

Abbas announced last week that he would not run for another term in an election scheduled for January, citing deadlocked efforts to revive peace talks.

The Palestinians insist that they will not engage in peace talks until Israel meets its commitment to freezing - not just limiting - settlement activity on lands the Palestinians want as part of a future Palestinian state.

The Obama administration says it does not accept the legitimacy of continued Israeli settlements, but Secretary of State Hillary Rodham Clinton argued during a visit to the Mideast last week that Israeli restraint could be seen as a first step toward a negotiated halt to settlement activity.

Palestinian negotiator Saeb Erekat said yesterday that the peace process had reached a "defining moment."

If Israel does not accept creation of a Palestinian state in the West Bank and Gaza Strip, "we will have to take other steps," Erekat said.

He would not elaborate, but he ruled out either dismantling the Palestinian Authority or declaring a Palestinian state.

At the State Department, spokesman Ian C. Kelly said the administration's special envoy for Mideast peace, George J. Mitchell, had no immediate plans to return to the region to continue his push for a resumption of peace talks.