The YPG seized Manbij from the Islamic State group in 2016 and USA forces have continued to support the Kurdish fighters in their battle against the jihadists.
Following the Kurds" liberation of Manbij from IS in August 2016, Turkey invaded Syria in a military operation dubbed "Euphrates Shield', capturing a swath of territory in the north. Mediation by Russian Federation and the USA prevented a direct conflict between the Turkish-backed militias and Kurds in Manbij at the time, but Ankara has continued to insist on a Kurdish withdrawal beyond the Euphrates ever since.
"We're going to discuss the intense cooperation between Israel and the United States, which will also deal with the questions following the decision, the American decisions on Syria - on how to intensify even further our intelligence and operations cooperation in Syria and elsewhere to block Iranian aggression in the Middle East, to roll it back".
While White House officials have denied reports that Trump also has ordered half of the 14,000 U.S. troops in Afghanistan to come home, Trump made it clear he has run out of patience for what's become the longest USA war. "I'm not thrilled about that, I'm not happy about it at all". "I campaigned against the NEVER ENDING WARS, remember!" he added.
"ISIS is mostly gone, we're slowly sending our troops back home to be with their families, while at the same time fighting ISIS remnants", Trump said on Twitter, using another name for Daesh.
Islamic State, or ISIS, is "mostly gone", he said, and the USA is slowly pulling out, "while at the same time fighting ISIS remnants".
Trump's comments come a day after Republican Sen.
The decision prompted Defense Secretary Jim Mattis to resign.
In mid-December, President Recep Tayyip Erdoğan announced an imminent Turkish operation east of the Euphrates River in northern Syria, saying Turkey had begun taking action toward the offensive against the PKK terror group's Syrian affiliate the YPG.
Leading Republican Senator Lindsey Graham, one of Trump's principal allies in an increasingly unfriendly Congress, used lunch at the White House on Sunday to urge the president to reevaluate on Syria.
"Oh, we're withdrawing", he said, adding that it would happen "over a period of time". Trump went out of his way to explain his continuing commitment to the Kurds.
"I campaigned on getting out of Syria and other places", the president wrote.
It was not entirely clear whether Trump was referring to the Kurdish People's Protection Units (YPG) in Syria or the Kurdistan Regional Government (KRG) in Iraq.
"Turkey doesn't like them", Trump said.