Beirut: Syrian President Bashar Al Assad said US plans to train vetted rebels to fight Daesh were “illusory” as they would eventually defect to the radical militants, in an interview published on Monday.

The Syrian leader also questioned talks to be held in Moscow this week, telling Foreign Affairs magazine that his government would attend but was not convinced the opposition figures taking part represented Syrians on the ground.

Washington has backed the Syrian opposition since early in the uprising and has unveiled plans to train more than 5,000 vetted rebels in Qatar, Saudi Arabia and Turkey to fight Daesh.

Al Assad said the planned US-trained force would be “illegal” and would be treated like any other rebel group.

“They are going to be fought like any other illegal militia fighting against the Syrian army,” he said.

“Bringing 5,000 [fighters] from the outside will make most of them defect and join [Daesh] and other groups.

“The idea itself... is illusory.”

The Pentagon has itself acknowledged that identifying and vetting potential rebel recruits for training is a difficult task that cannot be accomplished quickly without significant risks.

Al Assad questioned the seriousness of the US-led campaign against the militants.

“What we’ve seen so far is just, let’s say, window-dressing, nothing real,” he said.

“Did the United States put any pressure on Turkey to stop the support of Al Qaida? They didn’t,” Al Assad said.

He was referring to his government’s longstanding accusations that Ankara has backed rebel groups including Daesh’s rivals in Al Qaida affiliate Al Nusra Front.

Al Assad said the nearly four-year-old conflict could only be ended with a political solution, but cast doubt on the value of talks being organised this week by his key ally Russia.

The meetings, which opened on Monday, were intended to bring together government and opposition representatives, but the main exiled opposition bloc, the National Coalition, is boycotting the talks.

Al Assad said his regime would attend, but asked: “Who do you negotiate with?

“We have institutions, we have an army and we have influence,” he said.

“The people we are going to negotiate with, who do they represent?”

His government has long argued that the exiled opposition does not represent people inside Syria, accusing it of being “puppets” of its main foreign backers including the United States.

Al Assad also criticised the Israeli regime for a January 18 strike on Syrian territory that killed fighters of Lebanon’s Hezbollah movement and a general of Iran’s Revolutionary Guards.

Israeli sources said the strike was intended to prevent an attack on the Israeli regime, but Al Assad dismissed that as an “excuse.”

“Never has an operation against Israel happened through the Golan Heights since the ceasefire in 1974,” he said.

“So for Israel to allege that there was a plan for an operation, that’s a far cry from reality, just an excuse, because they wanted to assassinate somebody from Hezbollah.”

Iran has sent military advisers to Syria, while Hezbollah has dispatched thousands of fighters to battle the rebels, who Damascus claims are backed by the Israelis.

Al Assad said the January 18 strike proved Israel’s support.

“Some in Syria joke: ‘How can you say that Al Qaida doesn’t have an air force? They have the Israeli air force’.”