The missile strikes on chemical weapons installations in Syria was “precise, overwhelming and effective,” Pentagon officials said early Saturday.

The operation, carried out with allied British and French forces, fired 105 missiles at a chemical weapons research facility, a storage depot, and a command bunker, said Lt. Gen Kenneth McKenzie, who showed before-and after surveillance photos of the destroyed targets.

The strikes came in response to a chemical attack that killed dozens of civilians in a Damascus suburb last weekend.

“As of now, we’re not aware of any civilian casualties,” McKenzie said, noting all of the allied missiles had successfully reached their targets.

Friday’s operation did not wipe out Syria’s chemical capabilities entirely, McKenzie admitted. “There are other elements,” he said.

“We believe we’ve attacked the heart of the Syrian chemical weapons program,” he said. “We dealt them a severe blow. There’s some left, but we dealt them a severe blow.”

And he shot down the Syrian government’s claim to have taken out a dozen allied missiles in the course of the attack.

“They began to fire their missiles after the last impact of our weapons,” McKenzie said. “I can’t help you with what Syrians are saying, I can just tell you what actually happened.”

“This is not a change in U.S. policy,” said chief Pentagon spokeswoman Dana White. “This is not an attempt to depose the Syrian regime.”

“We do not seek conflict in Syria,” White said. “But we will not stand passively by while Assad, backed by Russia and Iran, ignores international law.”