President Donald Trump signaled Sunday the US will do “big damage” to the militants behind a deadly attack on American forces in Syria that he blamed on the Islamic State.

With Syria's new leadership emerging as a key U.S. partner, American troops in the country find themselves amid a complex pivot.

The number of U.S. troops in the country has fluctuated and currently stands at around 900. They are mainly posted in the Kurdish-controlled northeast and at the al-Tanf base in the southeastern desert near the borders with Iraq and Jordan.

Sharaa’s efforts to unify the country and rebuild relationships with the international community, analysts say.

The shooting took place near Palmyra, according to the state-run SANA news agency, which said two members of Syria’s security force and several U.S. service members were wounded. The injured were taken by helicopters to the al-Tanf garrison near the border with Iraq and Jordan.

Fox News contributor Dan Hoffman breaks down the ISIS ambush in Palmyra, Syria, that killed two U.S. soldiers and an interpreter and prompted President Trump to vow retaliation.

A smooth integration of the Kurdish-led Syrian Democratic Forces could build a stronger, more professional Syrian military capable of providing security throughout Syria.