Hardline White House national security adviser John Bolton’s last-ditch attempt to secure his faction’s goals for a planned US withdrawal from Syria appeared to go down in flames on Tuesday as Turkey’s president rejected any protection for the Washington-allied Kurdish militia, and even refused to meet with the firebrand conservative.

Instead, President Recep Tayyip Erdogan took to the floor of parliament in Ankara, announcing that Turkish armed forces had “mostly completed our preparations for a military offensive against” Isis elements in Syria as per an agreement with US president Donald Trump forged last month.

“Likewise, we are determined to take our steps against terror organisations such as the PYD/YPG [Kurdish People’s Democratic Union and its allied militia and political organisation in Syria] along with Daesh [Isis],” he said. “We will act to neutralise those terror organisations in Syria very soon.”

Mr Bolton, a Washington fixture known for his hawkish foreign policy positions, arrived in Ankara with his own travelling press in an apparent attempt to convince Turkey to avoid attacking Syrian Kurds. He has also demanded that any US withdrawal be conditioned on Iranian-backed forces leaving Syria, and steps put in place for the political change in Damascus.

Instead, Mr Bolton left Ankara without even meeting Mr Erdogan, who was cited by the pro-government Daily Sabah newspaper as insisting “his busy schedule prevented him from meeting” Mr Bolton, whose public positions have contradicted those of his boss and US secretary of state Mike Pompeo, who is also visiting the Middle East.

John Bolton during an appearance in Washington in December 2018 (Getty)

Mr Bolton and anti-Isis envoy Jim Jeffrey, arriving after a visit to Israel, met privately with Mr Erdogan’s senior adviser Ibrahim Kalin, who helped organise a 14 December phone call in which Mr Trump agreed to withdraw 2,000 or more US troops from Syria and hand control of anti-Isis efforts to Turkey.

Meanwhile, Mr Erdogan publicly hammered Mr Bolton.

“It is not possible for us to accept and swallow the message that Bolton gave from Israel,” he told lawmakers. Turkey, along with most independent analysts and US intelligence agencies, considers the YPG inseparable from the Kurdistan Workers Party, or PKK, an outlawed separatist organisation deemed a terrorist group by Ankara, the US and Europe.

It is not possible for us to accept and swallow the message that Bolton gave from Israel Recep Tayyip Erdogan, Turkish president

“If the US evaluates them as ‘Kurdish brothers’ then they are in a serious delusion,” Mr Erdogan said, in a televised speech interrupted by chants of “allahu akbar”, or God is great, by supporters. “John Bolton made a serious mistake on this issue. Whoever thinks like that is making a mistake.”

Many have voiced doubt over Turkey’s ability to fight Isis in Syria without continuing US air and intelligence support. But in a New York Times opinion piece published on Monday, Mr Erdogan spelt out Turkey’s plans for Isis-controlled Syria, noting that Turkish troops and allied local fighters left northern Syrian towns they liberated from extremists in far better shape than the US aerial bombardments that destroyed Raqqa and Mosul in their efforts to dislodge the jihadi group in 2017 and 2018.

Trump says Syria is ‘sand and death’

“Turkish troops and fighters of the Free Syrian Army went door to door to root out insurgents,” Mr Erdogan wrote. “Our approach left the city’s core infrastructure largely intact and made it possible for life to return to normal within days.”

Turkey and its allies already control a number of cities in northern Syria. Mr Erdogan proposed creating the same types of “stabilisation” forces used in those towns, along with popularly elected local councils, advised by Turkish officials. “Turkey is volunteering to shoulder this heavy burden at a critical time in history,” he said.

Turkish efforts to bring stability to Arab and ethnic Turkmen stretches of northern Syria have been successful, even drawing back tens of thousands of refugees.