of intent to join the CDF. Unlike John, Jane has no memories of Kathy's life, as she is only six years old, but after learning about Kathy, Jane seeks to learn more from John about being a "realborn" person and what kind of life one can have outside the CDF. Sagan manipulates her chain of command to promote John to an advisory role (as a lieutenant) to gather information from the Consu during a ritualistic meeting to obtain information. Perry discovers that the Rraey had received the skip-drive detection tachyon technology from the Consu, which was used to set up the ambush at Coral. Perry also manipulates his chain of command to have the last two of his friends from the "Old Farts" transferred out of combat duty to military research. Sagan and Perry then participate in a Special Forces operation in an attempt to capture or destroy the borrowed Consu technology in advance of a major attack to recapture Coral from the Rraey. Perry is instrumental in the successful outcome of the battle by capturing the technical manual for the Consu detection system (which was destroyed in the fighting), and saving Sagan's life after she is severely wounded. However, he never sees her again after delivering her to a shuttle which returns her to the secretive Ghost Brigades. At the conclusion of the book, Perry is promoted to captain following his deeds at Coral and, despite the separation, holds hope of reuniting with Sagan when their terms of service conclude. Technology Skip Drive Old Man's War introduces a new form of FTL interstellar travel called a Skip Drive. The Skip Drive takes an object like a space ship, punches a hole in space, and places the object at its destination in a new, essentially identical universe. There are limits on the skip drive due to the characters not knowing all there is to know about how it works. The limitations are as follows: The object skipping must not be near a major gravity well. The object skipping cannot skip out too far. The Colonial Union and other governments use devices called skip drones to communicate. These skip drones are essentially computers equipped with skip drives. A ship or satellite will launch one of these devices away from local gravity wells and skip to its target locale and upload its information to the local people. More advanced races, notably the