The ISAF has previously been led by the UK, Turkey, Germany, Canada and France.
Isaf takes all reports of civilian casualties seriously, and we are currently assessing the incident.
ISAF's command, as will its outpost in nearby Maimana, close to the border with Turkmenistan.
ISAF, has given warning that the alliance's future is at stake in the country.
Dunford, who took command of NATO's International Security Assistance Force (ISAF) about two months ago.
As the force was leaving, a helicopter "went down due to unconfirmed reasons, " ISAF said.
ISAF, in August 2003, it spent months haggling over troop numbers, helicopters and rules of engagement.
Attempts to extend the International Security Assistance Force (ISAF) beyond Kabul have also got nowhere.
Fifty nations, including the United States and all 28 NATO Allies, contribute forces to ISAF.
In the meantime, Mr Karzai has repeatedly asked for the ISAF to be expanded beyond Kabul.
The area around the ISAF headquarters is heavily fortified with concrete blast barriers and extra security forces.
This is part of the transition plan, and ISAF will remain combat-ready until the end of 2014.
We will see you all tomorrow, and, again, kick off in the morning with the ISAF session.
And we have launched an investigation through CENTCOM, as well as ISAF, to find out exactly what transpired.
Roedd cyfoeth yng Ngorllewin Cymru a'r Cymoedd lawr i 62.6% yn 2009 - y lefel isaf ers datganoli.
"The incident is currently being investigated, but it is confirmed that hostile fire was not involved, " ISAF said.
The Nato-led International Security Assistance Force (Isaf), which oversees operations in Afghanistan, said the commander's email was "prudent".
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The error is likely to embarrass Isaf which has been insisting the militants are in decline, correspondents say.
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Isaf spokesman Brig Gen Carsten Jacobson said that Nato could not yet reveal the identity of those killed.
Security Council most recently reaffirmed its authorization of ISAF for a 12-month period until October 13, 2013, in U.N.
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One of Monday's helicopter crashes occurred after the helicopter was returning from a raid on a compound, ISAF said.
They are unacceptable, and they will be investigated, again, by the Afghan government and the U.S., working through ISAF.
But Mrs Merkel's remarks on Monday appeared to raise doubts about the 2014 deadline for Isaf to leave Afghanistan.
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Roedd Cymru unwaith eto yn y safle isaf o wledydd y DU o ran gallu darllen, mathemateg a gwyddoniaeth.
And I think every NATO member, every ISAF member is committed to that.
The new ISAF tactics call for allied troops to accompany Afghan forces in joint operations, exposing them to attack.
Command of the ISAF passes in February from Turkey to a joint command led by Germany and the Netherlands.
But his is not the first ISAF commander to be in that position.
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Security Council most recently reaffirmed its authorization of ISAF for a 12-month period until October 13, 2012, in U.N.
And the helicopter was flown by Dutch pilots, who are here with NATO ISAF, or the International Security Assistance Force.
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