* Obama poised for much-anticipated "Arab spring" speech
* No overarching strategy, still case-by-case
* Arab disappointment likely on Israeli-Palestinian issue
By Matt Spetalnick
WASHINGTON, May 16 (Reuters) - President Barack Obama's bid this week to reconnect with the Arab world after the killing of Osama bin Laden poses a daunting challenge complicated by an uneven U.S. response to the region's uprisings and his failure to advance Israeli-Palestinian peace.
Obama on Thursday will give his much-anticipated "Arab spring" speech, the centerpiece of a pivotal week of Middle East diplomacy that also will include talks with Jordan's King Abdullah II and Israeli Prime Minister Benjamin Netanyahu.
By laying out his own vision for a "reset" with the region, Obama aims to counter criticism that he has been slow and inconsistent in dealing with an unprecedented wave of popular revolts that have upended decades of U.S. Mideast policy.
But even as he reaches out to a wider Arab audience, he is likely to disappoint many with what will be left out -- fresh U.S. proposals for breaking the impasse between Israel and the Palestinians and getting them back to negotiations.
Clashes Sunday on Israel's borders with Syria, Lebanon and Gaza, in which Israeli troops killed at least 13 Palestinian protesters, underscored the depth of Arab anger over the decades-old conflict, which remains a central preoccupation in the region.
Unlike Obama's 2009 Cairo speech that sought to win the hearts and minds of Muslims worldwide after years of estrangement under his predecessor, George W. Bush, the White House insists the address Thursday at the State Department will focus on new flashpoints in the Middle East and North Africa.
Less than three weeks after U.S. Navy SEALs killed bin Laden in Pakistan, Obama will try to tie together events in the Arab world and put the al Qaeda leader's demise in the context of the region's political transformation, aides say.
However, it is unlikely -- according to Obama aides and Middle East hands -- that he will use the chance to articulate an overarching strategy to supplant the case-by-case approach he has applied to turmoil engulfing U.S. allies like Egypt and Yemen and foes like Libya and Syria.
"The 'Arab spring' has huge uncertainties," said David Makovsky of the Washington Institute for Near East Policy, citing an Islamist rise to power as Washington's biggest fear. "So they want to avoid a one-size-fits-all doctrine and think in terms of what works for U.S. national interests."
IN SEARCH OF A NARRATIVE
Even before the bin Laden raid, Obama's aides were crafting a narrative on the U.S. response to Middle East upheaval and were just looking for the right time for him to roll it out.
Obama, enjoying a boost in his standing at home and abroad following the risky raid on bin Laden's compound, will make the case for Arabs to reject al Qaeda's Islamist militancy and embrace democratic change.
Aides have suggested Obama's speech could carry a veiled warning to Iran, which he has said cannot be allowed to develop nuclear weapons, that he is a leader who matches words with actions.
But Obama's push for democratic reform will remain tempered by a desire to preserve longtime partnerships with autocratic Arab governments like Saudi Arabia considered crucial to fighting al Qaeda, containing Iran and securing oil supplies.
Obama's critics probably will not be satisfied.
"I don't think you can get away with a Mideast policy that just cherry-picks the easy ones," said Elliott Abrams, a senior fellow at the Council on Foreign Relations and Bush's former deputy national security adviser.
Obama's domestic opponents have accused him of acting too timidly in Libya to break the stalemate between Muammar Gaddafi and rebels trying to oust him, and of not being tough enough with autocratic allies in Yemen and Bahrain.
The administration also is under pressure to take stronger action against Syrian President Bashar al-Assad over his government's violent crackdown on a pro-democracy protests.
"Each of the countries in the region ... is different," White House spokesman Jay Carney told reporters. "And the circumstances of the unrest and the government's response have been different in each case."
PEACE EFFORTS STALLED
Obama and his advisers had weighed using Thursday's speech to present a new formula for restarting long-stalled peace talks between Israel and the Palestinians.
That idea was put on hold after a reconciliation deal between the Palestinian Authority and the Hamas Islamist movement, a deal denounced by Israel. The resignation last week of Obama's Middle East envoy, George Mitchell, further underscored the administration's faltering peace efforts.
Obama raised Arab expectations when he took office, vowing to make Middle East peace a priority. But the mood soured when he backed down from confronting Israel over settlement building in the occupied West Bank. His unmet pledge to shut the prison at Guantanamo also has drawn criticism in the Muslim world.
While Obama is expected to recommit broadly to seeking an Israeli-Palestinian peace deal in his speech and during White House talks with Netanyahu on Friday, there are no plans for the president to push for major Israeli concessions for now. Nor has Netanyahu's right-wing government hinted that any concessions would be forthcoming.
That would risk alienating Israel's support base among the U.S. public and in Congress as Obama seeks re-election in 2012. Relations between Obama and Netanyahu already have been strained and both want to keep further discord under wraps.
With ordinary Arabs increasingly mindful of the limits of what they can expect from Obama, some analysts in the Middle East question whether many will even be paying close attention when he takes the podium on Thursday.
The White House already has cautioned against the notion that the speech -- which some U.S. media have dubbed "Cairo II" -- will be on par with his enthusiastically received address in the Egyptian capital nearly two years ago.
"People in the region who put a lot of hope in Obama and his rhetoric have been disillusioned by his actual policies," said Mouin Rabbani, an independent Middle East analyst based in Amman. "They may not be interested in tuning in for more." (Additional reporting by Jeffrey Heller in Jerusalem; Editing by Warren Strobel and Bill Trott)
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