The U.S. has carried out what it called “large-scale strikes” against ISIS in Syria, U.S. Central Command announced Saturday afternoon.

The strikes, conducted at around 12:30 pm ET, were part of Operation Hawkeye Strike, which the Pentagon said was ordered by President Donald Trump on Dec. 19 in response to an ISIS ambush near Palmyra on Dec. 13. That attack killed two U.S. soldiers and a U.S. civilian interpreter, U.S. officials said.

The military in December launched strikes against Islamic State group infrastructure and weapons.

CENTCOM spokesperson Captain Tim Hawkins told NBC News that more than 35 targets were struck in Saturday’s operation. More than 90 precision munitions were fired, and more than 20 aircraft were involved.

The military said the strikes targeted ISIS “as part of our ongoing commitment to root out Islamic terrorism against our warfighters, prevent future attacks, and protect American and partner forces in the region.”

“Our message remains strong: if you harm our warfighters, we will find you and kill you anywhere in the world, no matter how hard you try to evade justice,” CENTCOM’s statement said.