The killing of three Americans during what was said to be a counterterrorism operation in central Syria served as a reminder that U.S. troops are still operating in the country.

President Donald Trump said Saturday that there will be “very serious retaliation” after two US soldiers and one civilian interpreter were killed in an ambush in Syria on Saturday.

Two U.S. service members and one American civilian have been killed and three other people wounded in an ambush by the Islamic State group in central Syria, the U.S. Central Command said. Saturday's attack on U.

President Trump said in a Truth Social post that it was an "ISIS attack against the U.S." and Syria and that there will be "very serious 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.