Syria

The nature of the new threat posed by ISIS that triggered this U.S. response was not described.

President Donald Trump said on "Fox & Friends" Tuesday that he wanted to "take out" Syrian President Bashar al-Assad.

Col. Wayne Marotto tweeted that the incident was not the result of hostile activity.

U.S. officials said a Russian vehicle sideswiped a light-armored U.S. military vehicle, injuring four Americans.

U.S. troops were injured after a Russian vehicle hit a U.S. convoy, the White House's National Security Council confirmed.

Voronkov told the U.N. Security Council that Islamic State fighters move freely “in small cells between the two countries.”

Officials denied reports that the U.S. conducted an airstrike in support of the patrol.

The U.S. has pressed for repatriation of the Al Hol inmates to their home countries to face justice.

"The foreign policy establishment in Washington, D.C. continues to talk about Syria as if it were a critical node."

Passengers posted videos and photos on social media claiming a fighter jet was buzzing the aircraft "in a threatening manner...