"It's not the establishment of an arbitrary point for the withdrawal to take place as President Obama did in the Afghan situation...the timetable flows from the policy decisions that we need to implement".
Those conditions, he said, included defeating what's left of IS in Syria and protecting Kurdish militias who have fought alongside USA troops against the extremist group. "So they don't endanger our troops but also so that they meet the president's requirement that the Syrian opposition forces that have fought with us are not endangered".
It was also reported that a Kurdish fighter was killed and another injured.
Addressing reporters at the White House, the president said: "We are pulling back in Syria".
According to Erim, if Turkey doesn't see Bolton's requests as feasible, then it will go back to square one, meaning Turkey will conduct a military operation despite United States military presence in Syria.
His comments mark the first public confirmation the drawdown has been slowed, as Trump faced widespread criticism from allies and the resignation of Defense Secretary Jim Mattis for a policy that was to have been conducted within weeks.
Turkey considers many Kurdish separatist groups - including the People's Protection Units, aka the YPG, which leads the US-backed Syrian Democratic Forces - to be terrorist organizations.
Two weeks ago, after Trump announced the withdrawal plan, Turkey's military began deploying hundreds of vehicles and troops in areas surrounding the northwestern Syrian town of Manbij that Ankara has long pushed the U.S. to clear of Kurdish militant groups.
Bolton acknowledged that pockets of the Islamic State remain undefeated and that a quick U.S. pullout could endanger USA partners and allies in the region, as well as USA forces themselves.
However, speaking on Sunday before leaving for his Camp David retreat, he told reporters: "We're going to be removing our troops".
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Among the policy decisions still to be made was what to do about the tens of thousands of Syrian Kurdish fighters that USA forces had trained, armed and advised to carry out the ground war against the Islamic State.
"The danger, I think, is that in the absence of a hard plan, you get competing fiefdoms", Stein added.
Previously, a U.S. defense official told CNN that the United States expected Turkey to make various requests for support - including for airstrikes in Syria - but the USA would first seek assurances from Ankara that it will not attack US-backed Kurdish fighters in northern Syria.
Bolton is in Israel to reassure the American ally about the planned withdrawal of US troops from Syria, which Israel fears could allow a resurgence of the Islamic State there.
Erdogan's spokesman Ibrahim Kalin said Turkey's targets were the YPG, the PKK and Islamic State.
Bolton on Sunday said the USA guidance to the Kurds is "stand fast now".
Despite the proclamations of victory, Trump and top administration officials are now saying that the fight against the US -designated terrorist organization would continue in Syria.
Much of the global community regards the Golan Heights as part of Syria, albeit under Israeli occupation, since the neighboring nation took it during the 1967 Six-Day War. Bolton's explanation of the conditions for withdrawal appeared to contradict U.S. President Donald Trump's December 19 Twitter announcement that ISIS had been defeated and that U.S. forces were "coming back now".
He defended the legal basis for the deployment, saying it is justified by the president's Constitutional authority, adding "I'm a strong believer in Article II".