Islamic State militants attacked Syrian army troops with mustard gas in an offensive against a Syrian military airport in the eastern province of Deir al-Zor that borders Iraq, state media said on late Monday. Syrian state media did not disclose how many casualties were sustained...

U.S. Navy ships in the Arabian Sea intercepted and seized an arms shipment from Iran likely bound for Houthi fighters in Yemen, the military said in a statement on Monday. The weapons seized last week by the warships Sirocco and Gravely were hidden on a small dhow and included...

Syrian troops on Sunday seized the key Islamic State group bastion of Al-Qaryatain, dealing the jihadists a new blow in the country's centre a week after expelling them from Palmyra, state television said. The Syrian Observatory for Human Rights monitoring group however said fighting was still...

 Syria's partial cease-fire is unraveling, as fierce fighting between pro-government forces and opposition fighters, including members of the al-Qaida affiliated Nusra Front, erupted Saturday outside the country's second largest city of Aleppo. At least 25 pro-government fighters died in...