Congress approved $400 million in anti-drug aid for Mexico last June, but has yet to release the money.

Olmert's office said the two "agreed on the need to continue advancing peacemaking, while safeguarding Israel's security." Israel and the Palestinians relaunched talks nearly a year ago at a U.S.-sponsored peace conference, and they set a year-end target for a final accord. But no breakthroughs have been reported, and in Israel on Thursday, Secretary of State Condoleezza Rice all but conceded that goal was unachievable.

Iranian President Mahmoud Ahmadinejad on Thursday congratulated Obama on his election win in a letter, - the first time an Iranian leader has offered such wishes to a U.S. president-elect since the 1979 Islamic Revolution. The Iranian leader also said he hopes Obama will "use the opportunity to serve the (American) people and leave a good name for history" during his term in office.

In his conversation with Lee, Obama said the U.S.-South Korea alliance is a "cornerstone" of Asia's peace and stability, and promised improved relations between the countries, Seoul's presidential office said.

The United States helped defend South Korea during the Korean war and is its No. 1 ally. About 28,500 American troops are still stationed there to deter threats from communist North Korea.

Brown's Downing Street office says he and Obama spoke about several issues, including reform of the global financial system. Britain's Press Association newswire said the two had a "very friendly and positive" 10-minute conversation, covering topics including the world economy, the situation in Iraq and Afghanistan, and the Middle East peace process.

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