TAL ABYAD, SYRIA - Turkish and U.S. troops conducted their first joint ground patrol in northeastern Syria Sunday as part of a so-called ``safe zone'' that Ankara has been pressing for in the volatile region.
Turkey hopes the buffer zone, which it says should be at least 30 kilometers (19 miles) deep, will keep Syrian Kurdish fighters away from its border. Turkey considers these Kurdish militias a threat, but they've also been key U.S. allies in the fight against the Islamic State group. So far, the Kurdish-led forces have withdrawn 14 kilometers (nine miles) only. The depth of the zone, as well as who will control it, is still being worked out.
Associated Press journalists in the countryside of Tal Abyad Sunday saw about a dozen Turkish armored vehicles with the country's red flag standing along the border after crossing into Syria, and American vehicles about a mile away waiting. The two sides then came together in a joint patrol with American vehicles leading the convoy.
At least two helicopters hovered overhead at the border. The Turkish Defense Ministry confirmed the start of the joint patrols and said unmanned aerial vehicles were also being used.
The patrol inspected several Kurdish-controlled bases, apparently to ensure that trenches and sand berms had been removed. U.S. troops had inspected the base on Saturday during patrols with the local Kurdish-led forces, during which some of the berms Turkey had complained about were removed.
Washington has in the last years frequently found itself trying to forestall violence between its NATO ally Turkey and the Kurdish fighters it partnered with along the border to clear of IS militants.
An initial agreement between Washington and Ankara last month averted threats of a Turkish attack. But details of the deal are still being worked out in separate talks with Ankara and the Kurdish-led forces in Syria known as the Syrian Democratic Forces, or SDF. The force is dominated by the People's Protection Units, or YPG, considered by Ankara a terrorist group because of its links to Kurdish insurgents inside Turkey.
While Turkish officials are calling it a ``safe zone,'' Washington and the Kurdish-led forces speak of a ``security mechanism'' taking shape to diffuse tensions in northeastern Syria.
In a statement, coalition spokesman Col. Myles B. Caggins III said the Turkish forces "observed first-hand progress on destroyed YPG fortifications and areas where YPG elements voluntarily departed the area." He said the patrol demonstrates America's commitment to address Turkey's legitimate security concerns ``while also allowing the Coalition and our SDF partners to remain focused on achieving the enduring defeat of Daesh,'' an Arabic acronym for the Islamic State group.
Turkey, which has carried out several incursions into Syria in the course of the country's civil war in an effort to curb the expanding influence of the Kurdish forces, carried out joint patrols with U.S. troops in the northern town of Manbij last year, along the border of the areas controlled by Kurdish-led forces.
Sunday's joint patrol was the first one taking place east of the Euphrates River, where U.S. troops have a greater presence, and as part of the so-called safe zone that is being set up.
The joint patrol ended after two and a half hours, with four stops along the way in villages near the border.
Local commuters patiently waited while the convoy blocked traffic. The patrol then continued driving along dirt tracks as farmers and kids looked on.
"We don't know what this will do. We will see," said one onlooker.
The Syrian government, which withdrew from the area in the chaos of war after the conflict erupted in 2011, condemned the joint patrol Sunday and labeled it ``an aggression in every sense of the word.''
In a statement issued by the Syrian Foreign Ministry, it said the move was a ``blatant violation of international law and the sovereignty'' of Syria.
For Turkey, a ``safe zone'' is important because it is hoping some of the Syrian refugees it has been hosting for years could be resettled there, although it is not clear how that would work.
On Thursday, Turkish President Recep Tayyip Erdogan warned that Turkey could ``open its gates'' and allow Syrian refugees in the country to move toward Western countries if a safe zone is not created and Turkey is left to shoulder the refugee burden alone. Turkey hosts 3.6 million refugees from Syria.
The Kurdish-led administration in northeast Syria said it had agreed to the joint patrols, which came as part of the agreements that the U.S.-led coalition had reached with Turkey to avert a war.