1 Maccabees 11:38

After this, when king Demetrius saw that the land was quiet before him, and that no resistance was made against him, he sent away all his forces, every one to his own place, except certain bands of strangers, whom he had gathered from the isles of the heathen: wherefore all the forces of his fathers hated him.

Background and history of 1 Maccabees, and issues with this book.