Turkey Pressing E.U. for Help in Syria, Threatens to Open Borders to Refugees

Time and again, when President Recep Tayyip Erdogan of Turkey wants something from the Europeans, he has reminded them that he is the gatekeeper to tens of thousands of refugees he could send their way.

Friday was much the same, as Turkey demanded help from NATO after a deadly clash in Syria. But this time, Mr. Erdogan not only threatened to let refugees enter Greece. Local officials bought several thousands of them tickets, helped them onto shiny Mercedes-Benz buses and drove them to the border.

The mini-exodus was accompanied step by step by state-run Turkish media, which live-streamed scenes of harried families pushing off shore for Greek islands in scenes reminiscent of the 2015 migrant crisis that Europe was able to solve only with Turkish help.

The echoes of that crisis were no doubt deliberate on the part of Erdogan, who knew he could count on the desperation of refugees eager to make their way to Europe to make his point. Friday’s events were widely seen as his attempt to weaponize both the desperation of migrants and the xenophobia of Europe.It was the ninth time, in fact, that the Turkish president has promised to send a new surge of refugees Europe’s way. Whether Mr. Erdogan was merely dangling the threat again, or will unleash a full-blown crisis remains to be seen.

If Turkey’s leader does mean business, he will open not only the border to Greece but also the border with Syria, where he has blocked several hundred thousand would-be refugees as fighting has intensified in the area of Idlib.

“He’s trying to say, ‘What happens in Idlib doesn’t stay in Idlib,’” said Aaron Stein, a Turkey expert at the Foreign Policy Research Institute, an American think tank. “‘You Europeans have been free riding on our backs for years now, and as the situation grows more serious, our problem is now your problem.’”

“I think this is mostly for show,’’ Mr. Stein added, ‘‘but I don’t know when the show ends.”

Turkish actions throughout Friday suggested that Mr. Erdogan’s latest threat could be his most credible.

All day, his government shuttled hundreds of migrants from the center of Istanbul to the Turkish land border with Greece — for free. Overnight, migrants were told to gather outside the headquarters of Istanbul’s migration authority, down the road from the city’s main police station.

In broad daylight, officials then helped herd more than 600 migrants onto at least 12 buses sent to the Turkish-Greek land border, some 150 miles to the northwest.

The coaches were provided by local municipalities, according to three coach drivers who spoke on condition of anonymity. Police officers battled to keep order as migrants laden with snacks, backpacks, strollers, suitcases and diapers jostled for space on the coaches.

As many as 3,000 more migrants were sent from other towns and cities in the country, a refugee at the border estimated. Internal legal restrictions on migrants’ movements seemed to have been temporarily rescinded, as taxi drivers and private car owners were allowed to drive Syrians and other foreigners directly to the border, in full view of the police.

The display was an act of facilitation not seen even during the 2015-16 crisis, when Turkey turned a blind eye to the movement of refugees without ever physically organizing it.

The brazenness of the operation spoke of Mr. Erdogan’s desperation and diplomatic isolation as Turkish forces have become ever more embroiled in the Syrian war.

In recent years, Turkish troops have created an informal protectorate in parts of northern Syria, sheltering Syrian rebels and displaced civilians from the Syrian government and the. government’s Russian allies.

But that strategy collapsed in recent weeks, as the Syrian government, backed by Russian air power, retook vast tracts of land, increasingly drawing Turkish troops into the conflict.