Brig Gen Carsten Jacobson, spokesman for the NATO-led International Security Assistance Force, said an investigation had been launched.
Dunford, who took command of NATO's International Security Assistance Force (ISAF) about two months ago.
The soldiers were serving with the International Security Assistance Force, the organization said in a statement.
Attempts to extend the International Security Assistance Force (ISAF) beyond Kabul have also got nowhere.
And an International Security Assistance Force was established to help bring a lasting peace to a war-torn country.
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The Nato-led International Security Assistance Force (Isaf), which oversees operations in Afghanistan, said the commander's email was "prudent".
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Nato's International Security Assistance Force plans to withdraw all of its combat forces by the end of 2014.
"They're not going to pull out immediately, " she said, referring to the NATO-led International Security Assistance Force in Afghanistan.
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The International Security Assistance Force said Taliban insurgents kidnapped the rescued U.S. doctor.
The British have the second-largest contingent in Afghanistan, after the United States, according to NATO's International Security Assistance Force.
And the helicopter was flown by Dutch pilots, who are here with NATO ISAF, or the International Security Assistance Force.
Gary Kolb of the International Security Assistance Force, the NATO-led command in Afghanistan, verified the documents to CNN on Saturday.
Approximately 61, 000 of these forces are assigned to the North Atlantic Treaty Organization (NATO)-led International Security Assistance Force (ISAF) in Afghanistan.
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But thanks to western reluctance to provide more troops, the International Security Assistance Force holds sway only in the capital, Kabul.
Mark Laity, spokesman for NATO-led International Security Assistance Force (ISAF) said that they were aware of the report of attacks on villages.
The North Atlantic Treaty Organization confirmed the helicopter went down on Sunday, but the International Security Assistance Force didn't have any other details.
Two U.S. service members were killed Monday in incidents involving roadside bombs in southern Afghanistan, according to the NATO-led International Security Assistance Force.
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Nato has since announced that joint operations carried out by its own International Security Assistance Force (ISAF) and Afghan troops will be restricted.
On Wednesday morning, Maj Martin Creighton, spokesman in Kabul for Nato's International Security Assistance Force (Isaf), outlined what was known about Wednesday's incident.
On Thursday June 20th, Britain handed over to Turkey the leadership of the 5, 000-strong International Security Assistance Force, which has troops from 19 countries.
He said the success of Nato's International Security Assistance Force and their Afghan partners was playing a role in the shift of Taliban tactics.
The Nato-backed International Security Assistance Force (Isaf) is gradually handing over responsibility for security to Afghans but about 140, 000 foreign troops remain in the country.
Gen Dunford, a Marine like Gen Allen, took over the leadership on Sunday in a ceremony at International Security Assistance Force (Isaf) headquarters in Kabul.
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And a British soldier with the International Security Assistance Force died during fighting Tuesday in Helmand province in the south, United Kingdom defense officials said.
The International Security Assistance Force said Taliban insurgents kidnapped the men.
But Nato's International Security Assistance Force (Isaf) said there were no reports of militant activity in or around the base at the time of the crash.
NATO's International Security Assistance Force said one of its troops died Tuesday from wounds suffered when a vehicle struck a mine in Nangarhar province in eastern Afghanistan.
"The operators of the UAV lost control of the aircraft and had been working to determine its status, " said the statement released by NATO's International Security Assistance Force.
The British have the second-largest contingent in Afghanistan, after the United States, which has about 65, 000 -- including 31, 800 operating as part of NATO's International Security Assistance Force.
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