The Clone Wars: Defenders of the Republic

Star Wars: The Clone Wars: Defenders of the Republic is a young readers' book based on the Star Wars: The Clone Wars television series. It was released October 7, 2010.

Official description
Based on the Star Wars: The Clone Wars television series, this novel follows a group of clone troopers as they rise through the ranks from cadets, to rookies, and all the way to elite ARC troopers.