A German public television network station will broadcast the speech, which begins at noon (7:00 p.m. our local time).

Obama plans to visit France tomorrow and Britain on Saturday.

And earlier, Obama met with Israeli Prime Minister Ehud Olmert.

Obama had thanked Olmert for his role in the peace progress.

Obama visited Jerusalem's Western Wall earlier this week, an action that ended his trip to Israel.

During his trip in Israel, Obama emphasized his commitment to the country's security.

"I just want to communicate my stalwart support for Israel's security and the hope that the United States of America will continue to serve a constructive role in moving the process forward," Obama said.

Obama also pledged to keep Israel safe from a Nuclear Holocaust and defended his plan for direct talks with Iran's leader.

"It's not because Im naïve about the nature of any of these regimes. I'm not. It is because if we show ourselves willing to talk it puts us in a stronger position to mobilize the international community to ratchet up the pressure," Obama said.

And while Obama is abroad, John McCain remains in the United States.

McCain has supported President Bush's ban on off-shore drilling, which has led to lowered oil prices.

"In case you missed it, as soon as the President announced that we were going to lift the moratorium on offshore drilling, the price of a barrel of oil went down $10. As soon as we get that oil offshore, it's not only going to help us with our supply, it's going to affect this futures market which we know has gone out of sight," McCain said.

McCain continues to criticize Obama for putting his political interests in front of the war, as Obama refuses to acknowledge that the military surge has been successful.

"He still to this day has said that the surge has not succeeded. It's a remarkable, remarkable failure to understand the facts on the ground. So apparently Senator Obama would rather lose a war in order to win a campaign," McCain said.

And although neither presidential nominee has officially picked a vice-presidential running mate, some political observers say McCain could make a choice in the next couple of days.

In regards to the campaigning effort, Obama announced he will buy $5 million in national advertising on NBC during the Olympic Games.

The advertising will give him increased exposure before the Democratic National Convention, which is held the last week in August.

Some political advisors are questioning Obama's national advertising though.

They say a national buy is often rare because it targets many people who are already going to vote for the advertiser.