What does Judges 18:27 mean?

The Danites took what Micah had made and the priest he had, and went to Laish, where the people were peaceful and unprepared. They attacked them with swords and burned the city down. Judges 18:27 - Modern Text Bible

(The Danites use their stolen religious items and priest, then attack the unsuspecting people of Laish, destroying the city.)