Western contractors at a US-led coalition base said earlier in the day that dozens of American soldiers have been transported to Afghanistan over the past week.
Such an agreement between the coalition and the Iraqi government has been reached for the first time since the war against Daesh in the Middle Eastern country was launched three years ago.
According to the report, issued by Pentagon last year, some 8,892 US troops had been deployed to Iraq.
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The Iraqi Army's victory over Daesh was declared last December by the Iraqi Prime Minister Haider al-Abadi after the country's forces had gained complete control over the border with Syria.
Daesh had kept Iraq under its control since 2014, after seizing Mosul, the country's second-biggest city, and making it the terrorist group's so-called capital in Iraq. A year later, the country's forces, supported by the US-led coalition, launch an operation to free the territories.
Iraqi forces regained control over Mosul last summer, while later in November, they retook the town of Rawa, the last Daesh stronghold in the country.