Sgts. William Nathaniel "Nate" Howard and Edgar Torres-Tovar were killed in Syria while they were stationed with the Iowa National Guard.

Prime Minister Anthony Albanese said two gunmen who killed 15 people at a Jewish holiday celebration were motivated by the Islamic State.

ISIS gunman kills two Iowa National Guard members in Syria terrorist attack. Community mourns loss of Nate Howard and fellow soldier in tragic incident.

The shooting happened during a mission by U.S. and Syrian forces in a historic central town near Palmyra on Saturday. President Trump and U.S. military officials attributed the attack to ISIS.

The black flag of the Islamic State, also known as ISIS, is no longer associated with the sprawling territorial “caliphate” the group once controlled in the Syrian desert. It no longer serves as a banner beckoning Islamist militant recruits from across the globe or as the symbol of an organization with tight operational control over its terrorist plots and media profile.

President Donald Trump is vowing “big damage” on ISIS after the terrorist group ambushed U.S. troops in Syria, killing two soldiers and an American interpreter and wounding three others.

A gunman who ambushed U.S. and Syrian soldiers, killing two American troops and a civilian interpreter near Palmyra Saturday, is thought to have been an Islamic State infiltrator working as part of local security.

The ISIS fighter who killed three Americans in Syria over weekend highlighted the continuous U.S. military presence in the country.