damn i remember those books, with Thrawn who was going for those little creatures who were awesome fighters, and Leia went down to try to release them from "slavery", but they thought the admiral was doing them a favor, because he had drones helping plant stuff, but actually they were planting chemicals, and destroying them as much as building, so they always felt obliged to the Admiral, and always sent their people to fight for the admiral. in the end, one of the "fighters" actually kills the admiral.
What books (book?) was that?
Also the one i remember perfectly clearly is with "Master" Luke Skywalker when he fights Kueller and Brakiss, etc.