Turkey slammed the US decision to arm the Kurdish People's Protection Units (YPG), which Ankara considers terrorists but which Washington sees as an indispensable ally in the fight against IS.
The issue risks stoking tensions between the two countries less than week before US President Donald Trump and his Turkish counterpart Recep Tayyip Erdogan meet for the first time as heads of state.
The YPG makes up the bulk of the Syrian Democratic Forces, which today scored a major victory against IS in the Syrian city of Tabqa.
"The combing operations are ongoing to ensure that the city is clear," said spokesman Talal Sello.
Tabqa sits on the Euphrates River as well as a strategic supply route about 55 kilometres (35 miles) west of Raqa, the Syrian heart of IS's so-called caliphate.
The UN has warned damage to the Tabqa dam -- Syria's largest -- could lead to massive flooding.
Warplanes from the US-led coalition have pounded the city and nearby IS positions for weeks as part of the broader offensive for Raqa.
Spokesman Redur Xelil said the move was "somewhat late", but would still "provide a strong impetus" to all forces fighting IS.
But this sparked ire from Turkey, which regards the YPG as the Syrian branch of the Kurdistan Workers' Party (PKK), which since 1984 has waged an insurgency inside Turkey, leaving tens of thousands dead.
"I hope very much that this mistake will be reversed immediately," said Erdogan.
"I will personally express our worries in a detailed way when we talk with President Trump on May 16," he added, saying the issue would also be discussed at the NATO summit in Brussels on May 25.
The dispute over arming Syria's Kurds poisoned ties between the two NATO allies under the administration of former president Barack Obama but Ankara had hoped for smoother ties under Trump.
Prime Minister Binali Yildirim said it was "out of the question" for Turkey to accept any direct or indirect help for the PKK.
"The United States and Turkey are two major partners in NATO. We don't believe America would choose a terror group over our strategic relations," he said.
Pentagon chief Jim Mattis sought to allay Turkish concerns, saying the US would work very closely with Turkey over security on its border with Syria.
"We have very open discussions about options and we will work together, we will work out any of the concerns," he said.
It remains to be seen what shadow the issue will cast over upcoming talks between Trump and Erdogan, touted as chance to forge a new partnership between the two sides.
While the government expressed predictable anger, the deputy head of the opposition Republican People's Party (CHP) Ozturk Yilmaz said it should go even further by postponing Erdogan's visit to the US.
According to the New York Times, the delegation was informed of the decision to arm the YPG by Trump's national security adviser H R McMaster.
Turkish media said the three met McMaster at the White House on Monday but gave no details over the content of the talks.
Both Washington and Brussels classify the PKK as a terror group but do not regard the YPG as such.
But Cavusoglu said the two were one and the same.
Turkey has said it is keen to join the battle to recapture Raqa but on condition the offensive excludes the YPG
Last month, Erdogan said if Turkey and the US joined forces, they could turn Raqa into a "graveyard" for jihadists.
But on April 27, Turkish warplanes struck YPG forces in Syria and also hit Kurdish forces in neighbouring Iraq in what Ankara described as "terrorist havens".
Meanwhile, Trump received Russia's top diplomat Sergei Lavrov at the White House on Wednesday and called on Moscow to reign in its ally Syrian President Bashar al-Assad.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
