RAMALLAH, January 9, 2008 (WAFA) - Palestinian official said in Wednesday that the Palestinian National Authority (PNA) believes that the USA is the only part that can have pressure on Israel.

"The U.S. is the only international side that can affect Israel and make it committed to the requirements of peace," said Nemer Hammad, political advisor of President Mahmoud Abbas. "So, Bush visit to the region involves a historical value."

The PNA counts on the United States to determine the success or the failure of Annapolis peace forum's results, Hammad said.

"The problem in the Israeli-Palestinian talks was not with the time... it is the lack of (Israeli) will to make peace. So far, we have not seen an Israeli signal indicating spirit to reach a two-state solution," Hammad said.

Bush arrived in Israel on Wednesday noon to kick off the first leg of his eight-day Middle East trip. He is to meet with President Abbas on Thursday.