US President Barack Obama will convene a heads of state meeting at the UN Security Council in September to address the threat of foreign fighters in Syria, according to US deputy national security adviser Ben Rhodes.

Speaking at a press briefing on Aug. 22, Rhodes said the United States considers foreign fighters returning from Syria a threat to US "homeland security" and the Obama administration expects "to enlist the support of partners in the region and the international community" to contain and defeat the Islamic State (IS).

The shift to a more aggressive US strategy to combat foreign fighters puts pressure on Washington’s regional allies to show a new accountability in their actions against IS.

On Aug. 24, foreign ministers from Saudi Arabia, Qatar, the United Arab Emirates, Jordan and Egypt met in Jeddah to discuss the Syria war and the threat from extremists. The next day, Iran’s undersecretary for Arab and African affairs, Hossein-Amir Abdollahian arrived in Saudi Arabia to discuss regional matters, including Syria, with Saudi Foreign Minister Saud al-Faisal.