AP, Washington

Straddling war and peace, President Barack Obama is about to formally end the divisive U.S. combat role in Iraq and restart talks between Israelis and Palestinians, a moment defined more by relief and hope than triumph.
On Tuesday night, Obama will tell the nation from the Oval Office that the U.S. role in Iraq has changed for good, with the remaining U.S. troops to play a supporting role to Iraqi forces. It will be a milestone with no celebration or banners in a still unresolved war, one that wages on years longer and at greater cost than most Americans ever imagined.
The next day, Obama will make his largest investment of political capital to date in the trying Mideast peace process. He will welcome Israeli Prime Minister Benjamin Netanyahu and Palestinian President Mahmoud Abbas for individual talks and a joint dinner, the prelude to direct negotiations between the leaders on Thursday with Secretary of State Hillary Rodham Clinton as host. Put together, the events amount to what the White House considers to be the capping of Obama's initial phase of foreign policy in the region and the starting of another. Officials see a picture in which Iraq is taking on self-reliance, the Mideast process is showing life, the international sanctions against Iran are taking hold and the added military muscle Obama ordered in Afghanistan is in place. All are considered progress toward solutions requiring deep patience.
Yet there are no victories to declare, and weary Americans have seen turning points come and go. The risk for Obama comes in defining expectations on pursuits that can fall apart at any time, often over events outside his control.
In Iraq, political leaders are in such stalemate that they have been unable to form a government since the March elections. Bombers and gunmen killed more than 50 Iraqis in attacks just last week, a reminder of the terror that can come at any time. In perspective, the levels of violence in Iraq have dropped considerably, but security and democracy are highly unfinished projects. "This is not, 'Everything is over,"' White House press secretary Robert Gibbs said. "We still have people there. And we'll still have violence there."
On Mideast peace, the resumption of talks is itself a victory, but Clinton set a sober tone even in announcing them. "There have been difficulties in the past; there will be difficulties ahead," she said. "We will hit more obstacles."
The focus on Iraq and the Mideast talks is Obama's most concentrated public emphasis on foreign policy and national security in weeks. That will continue throughout September as the president marks the ninth anniversary of the Sept. 11 terrorist attacks and heads later in the month for talks with world leaders at the U.N. General Assembly.
Hastening the end of a war he never supported, Obama's message about Iraq is expected to echo a line he said about Afghanistan in his major address about that war last December.