On her part, U.S. Secretary of State Condoleezza Rice hailed what she called a new will for peace in the region but said the Palestinians now must work strenuously to prevent violence. U.S. President George W. Bush provided a boost of momentum on the summit's eve by inviting both sides to separate talks at the White House this spring. In London, Foreign Secretary Jack Straw pledged that Britain would do all it could to help. German Foreign Minister Joshka Fischer in Berlin said "the renewed U.S. engagement is of central significance." --SPA1126 Local Time 0826 GMT www.spa.gov.sa/238053