Earlier on December 19, U.S. President Donald Trump announced an immediate withdrawal of troops from Syria but later said that he did not have a specific time limit for the pullout, signaling to an extension of the presence of U.S. troops on the grounds.
"For purposes of operational security, we will not discuss specific troop movements or timelines", he added.
Late Friday, Pentagon spokesman Cmdr Sean Robertson said that Operation Inherent Resolve "is implementing the orderly withdrawal of forces from northeast Syria within a framework coordinated across the U.S. government".
Ankara has been infuriated by the USA support for the Syrian Democratic Forces (SDF), which is dominated by the YPG under the pretext of fighting against Daesh. US support for a Syrian-led Kurdish militia known as the People's Protection Units that Turkey considers a foe is the source of one rift.
Pompeo arrived in Abu Dhabi on Friday as part of his regional tour aimed at reassuring Washington's Middle Eastern allies of its continued commitment to the complete dismantlement of Daesh a href="https://sputniknews.com/us/201812191070826973-us-military-syria/" *withdraw some 2,000 USA troops now deployed in the Middle Eastern country. It also led to major criticism that the USA was abandoning its local Kurdish allies amid Turkish threats of an imminent attack. Secretary of State Mike Pompeo, who is on a tour of the region, has also sought to reassure the Kurds that they will be safe after US troops withdraw from the country.
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The whistle-stop tour will also take Pompeo to Gulf countries including the United Arab Emirates, Bahrain, Qatar and Saudi Arabia. A long-promised proposed Trump plan for a peace deal between Israelis and Palestinians has so far failed to materialise.
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The Twitter hashtag.SaveRahaf ensued, and a photo of her behind a door barricaded with a mattress was seen around the world. Among those arrested was Samar Badawi, whose family members fled to Canada in 2015 and have since become Canadian citizens.
Trump summit with Kim Jong-un 'IMMINENT'
Moon acknowledged the Singapore agreement was "somewhat vague", and there was "scepticism" over Kim's denuclearisation pledge. Pyongyang has rejected demands for what it calls its "unilateral" disarmament as "gangster-like".
After initially tweeting about the decision to bring back USA troops "now", Trump this week said "we will be leaving at a proper pace while at the same time continuing to fight ISIS and doing all else that is prudent and necessary!"
They have also argued that it would further allow Damascus ally Iran to extend its influence across Syria and potentially threaten Israel.
Maria Zakharova, a Russian Foreign Ministry spokeswoman, said it was important for Syrian Kurds and the Syrian government to start talking to each other in light of the USA withdrawal plans.
On an unannounced visit to troops stationed near the Syrian border Friday morning, Turkey's defense minister Hulusi Akar reiterated Ankara is "determined" to fight Kurdish militias it considers terrorists and said military preparations were ongoing.
Though Mr Trump has said he wants a withdrawal to be coordinated, gradual and "prudent", observers have stressed that his announcement was having the same impact as a withdrawal itself.
"I can not share your confidence that they are leaving there because we never saw an official strategy", she added.