KABUL - The United Nations said on Thursday it would temporarily evacuate hundreds of its international staff from Afghanistan due to deteriorating security, a sharp blow for Western efforts to stabilize the country.

Spokesman Aleem Siddique said the United Nations would relocate about 600 of its roughly 1,100 international staff, with some being moved to safer sites within Afghanistan and the rest withdrawn from the country temporarily.

The move, a week after five U.N. foreign staff were killed by militants in Kabul, is a blow for U.S. president Barack Obama's counter-insurgency war strategy, which foresees an influx of civilian assistance alongside extra troops.

A still-secret document by Army Gen. Stanley McChrystal that requests more troops is expected to be among the topics discussed Wednesday when President Barack Obama meets with his national security team to hash out a strategy for Afghanistan and Pakistan.

Even with additional troops, McChrystal concluded that corruption still could let terrorists turn Afghanistan back into a haven, according to officials at the Pentagon and White House.

His request outlines three options for additional troops — from as many as 80,000 to as few as 10,000 — but favors a compromise of 40,000 more forces, the officials said. They described it to The Associated Press on condition of anonymity because they were not authorized to discuss it publicly.

Whisper it quietly. Contrary to popular opinion, the west has won the war in Afghanistan.

We've won. It was critical, after 9/11, that we went into Afghanistan to destroy the terrorist training camps that the plotters had attended … and we've done that: there are no camps left in Afghanistan, and all of the terror plots now come out of Pakistan.

The United Nations today temporarily pulled half its international staff out of Afghanistan and threatened that a complete and permanent withdrawal could follow.

Amid an atmosphere of increasing gloom in Afghanistan, the UN Special Representative in Kabul, Kai Eide delivered a pointed warning to the government of Hamid Karzai.

“There is a belief among some, that the international community (presence) will continue whatever happens because of the strategic importance of Afghanistan,” he told a press conference this morning. “I would like to emphasise that that’s not true.”

This means that at the very least two of the ten key allies of the US in Afghanistan will withdraw their troops within max. 1.5 years time. Germany, the third most important provider of troops, has also talked about withdrawal, as have several other important allies.

I expect it will not take long before the West’s coalition decides to withdraw altogether and hand the country back to the Taliban – especially considering America’s unwillingness to do what’s necessary to win this war.

Rather than doubling down on a strategy with objectives that could be unachievable, we should announce a flexible timetable to draw down our forces from Afghanistan. A timetable would defuse the perception that we are occupying that country, and help ensure that our presence does not fuel militancy and instability in the region.

Sen. Russ Feingold, D-Wis., is a member of the Senate Foreign Relations and Intelligence Committees.

The Australian government has asked military commanders to find ways to complete their missions in Afghanistan as soon as possible. The announcement is being seen as a clear hint that Canberra may pull its 1,500 troops out of Afghanistan earlier than expected.