A couple of airstrikes from Obama isn’t going to stop IS.

Beirut (AFP) – Islamic State jihadists captured the key Brigade 93 Syrian army base in Raqa province overnight, the Syrian Observatory for Human Rights said on Friday.

“The IS took Brigade 93 after fierce fighting and a triple suicide bomb attack,” Observatory chief Rami Abdel Rahman said, adding that government forces now hold just one position in the province at Tabqa military airport.

He said IS fighters were now preparing to attack the airport, the last bastion in the province of President Bashar al-Assad’s forces.

Since February, most of Raqa has been held by the Islamic State after the jihadists ousted mainstream rebel groups battling Assad’s regime.

Some troops had already pulled out of Brigade 93 in July after IS captured Division 17, another base in the region where at least 85 people were killed in fighting or summarily executed shortly afterwards, the Britain-based Observatory said.

It said that in the fighting for Brigade 93, “36 soldiers were killed, some of whom were beheaded, while others died in the fighting or in the initial triple suicide bombing” that launched the attack.