It is the sort of image that has become a staple of the Syrian revolution, a video of masked men calling themselves the Free Syrian Army and brandishing AK-47s — with one unsettling difference. In the background hang two flags of Al Qaeda, white Arabic writing on a black field.

“We are now forming suicide cells to make jihad in the name of God,” said a speaker in the video using the classical Arabic favored by Al Qaeda. […]

One Qaeda operative, a 56-year-old known as Abu Thuha who lives in the Hawija district near Kirkuk in Iraq, spoke to an Iraqi reporter for The New York Times on Tuesday. “We have experience now fighting the Americans, and more experience now with the Syrian revolution,” he said. “Our big hope is to form a Syrian-Iraqi Islamic state for all Muslims, and then announce our war against Iran and Israel, and free Palestine.”

Although a low-level operative, his grandiose plans have been echoed by Al Nusra Front for the People of the Levant, which military and intelligence analysts say is the major Qaeda affiliate operating in Syria, with two other Qaeda-linked groups also claiming to be active there, the Abdullah Azzam Brigades and Al Baraa ibn Malik Martyrdom Brigade.