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Opinion: It’s time for diplomacy in Syria

— Wednesday was a strange and scary day in Syria, even by Middle East standards.

In the early afternoon, American military commanders, nearly victorious against the Islamic State, were standing at a hilltop observation post here complaining about harassing fire on their Syrian Kurdish partners — from a rebel force that is backed by Turkey, our NATO ally.

And then a few hours later, about a hundred miles to the southeast, ground troops supporting the Syrian regime of Bashar Assad struck a headquarters of Syrian Kurdish fighters and their partners from U.S. Special Operations Forces, five miles east of the Euphrates and possibly near Syrian oil fields. The American-led coalition hit back hard with air strikes.

The U.S. military wouldn’t provide any details, but Russian forces have been backing the Syrian regime in the Deir al-Zour area. The firefights continued well into the night and could mark a significant escalation of the war here.

Wednesday’s lesson, on both fronts, is that this battlespace is way too crowded, and slipping dangerously close to a much wider conflict.

America and Turkey have been moving in slow motion toward their collision since the U.S. decided to destroy the Islamic State three and a half years ago. The only Syrian partners able to do the job were the Kurds, who dubbed themselves the Syrian Democratic Forces. Turkey was furious, claiming that the Kurdish group was “terrorist.” But Ankara could never offer a credible alternative to conquer the Islamic State, so the U.S. pushed on.

When the Russians entered the fray in 2015, the U.S. tried to establish clear deconfliction lines. But this has proved a delicate and uncertain business. Those Russia contacts are more essential now than ever.

How can the U.S. untangle this mess, so it can finish the job against the Islamic State? America needs “dialogue” and “de-escalation” quickly with Turkey, explains Lt. Gen. Paul Funk, the commander of U.S. forces in Syria and Iraq. The campaign against the Islamic State is “slowing down,” he warns, and the lull could “allow these people to escape” into Turkey and then to Europe.

Funk speaks to reporters here at an outpost manned by the SDF. A mile and a half west, you can see the berm that marks the forward position of the Turkish-backed rebels. About 40 miles farther west is the Kurdish zone called Afrin, which Turkish warplanes and artillery have been pounding since late last month.

U.S. Special Operation Forces have done wonders here, working with the SDF, shattering Islamic State control of eastern Syria. But we’re nearing the end of what military power can do. The next step requires diplomacy. It’s encouraging that national security adviser H.R. McMaster is heading to Ankara this weekend. He would be wise to treat the crisis with Turkey as an opportunity — and start the quiet discussions that could lead to an eventual reconciliation of Turkish and American interests.

Manbij illustrates how the battle against the Islamic State was turned by the U.S. and its SDF partners — and what post-Islamic State recovery looks like.

The sidewalks of Jalla Street in the center of town were so crowded with shoppers Wednesday that it was easier to walk in the road. In a little stall selling men’s cologne, Fawaz al-Khannem remembers that the favorite scent of Islamic State fighters was a musky fragrance called “Sultan.” Inside the covered market, where the Islamic State once built car bombs, the shops are packed. Women are buying colorful dresses, sparling with sequins, and ripped jeans.

Perhaps the brightest spot in this liberated town is a girl’s school, where students have returned after years in hiding from the Islamic State. Interrupted in the middle of French class, high-school seniors talk animatedly about their plans. They’re wearing makeup and vibrant clothes; a girl named Aisha is wearing a pink hijab.

Nothing in the Middle East is ever precisely what it appears. Each victory opens the door to a new problem, but no obstacle is quite as insurmountable as the bellicose rhetoric suggests.

On Wednesday, as Turkish-backed forces were firing at an SDF checkpoint, scores of trucks were queued up to cross from Manbij into the Turkish-controlled zone. The Syrian regime allowed Kurdish protesters to traverse regime territory to reach Afrin; later in the day, pro-regime forces were attacking the Kurds elsewhere. Meanwhile, as Turkish politicians were snarling at America, the Turkish and U.S. militaries continued their regular liaison.

Syrian Kurdish forces have been a brave partner for America, but also an inconvenient one. Abandoning them would be a bad mistake, but it would also be wrong to let this hydra-headed conflict keep festering. The U.S. military did its job in Syria. Now it’s time for hard-nosed diplomacy.

— David Ignatius is a columnist for Washington Post Writers Group.

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