In the Star Wars Expanded Universe, Adar Tallon was a military instructor and commander for the Galactic Republic, Rebel Alliance and New Republic.

Admiral Tallon was a brilliant tactician who fought during the Clone Wars alongside the Jedi and the forces of Alderaan. A veteran soldier, it was Tallon who spoke to many new recruits about the brutal realities of war. His starship tactics, such as those at the Battle of Balamak, had a heavy influence, earning him the post-period title of "The Father of the Old Republic Navy" and lending his name to tactics like the Tallon Roll and the Tallon Split.

As the Republic began to transition towards Empire, and enemies of the New Order vanished, Tallon became disillusioned with the direction the galaxy was taking. Calling in a favor from an old associate, a pirate named Quist, Tallon faked his own death. While he retired to Tatooine, the rest of the galaxy believed that he had died saving a medium freighter from pirates in the Dalchon system. On Tatooine, Adar Tallon and the crew of his patrol craft, Battalion, took on new identities, and stayed out of sight for several years. Tallon himself moved to Fort Tusken with his wife, Kay.

In 0 BBY, when stormtrooper landed on Tatooine to search for C-3PO and R2-D2, Tallon realized he could not hide from the Empire forever. He began to plan his return, making contact with his old crew, including Quist and the mercenaries Shrike and Jungen. At the same time, Captain Parlan of the Imperial Star Destroyer Relentless discovered that Tallon was still alive. Parlan sent several bounty hunters, including Jodo Kast and IG-72, to Tatooine to kill or capture Tallon. Luckily, a small group of Rebels also learned that Tallon was still alive, and managed to help him escape. With his peaceful exile ended, Tallon joined the Rebel Alliance.

In his service to the Alliance, Tallon taught space combat tactics to starfighter pilots, tutored starship commanders in capital ship maneuvers and commanded several strike groups. Tallon's starship combat maneuvers proved to work best with Dodonna's military strategies, often besting the most advanced Imperial commanders and allowing the inferior numbers of the Alliance to triumph time and time again.

After the formation of the New Republic, Tallon joined his old friend General Jan Dodonna's "Gray Cadre", together with Vanden Willard and Pashna Starkiller. As part of this body, he continued to advise the New Republic on military policy, especially during the reappearance of Emperor Palpatine.

References

The Dark Empire sourcebook, Wizards of the Coast, 1st edition, 1993. Horne, Michael, ISBN 0-87431-194-2

Star Wars Rebel Alliance Sourcebook, 1994. Paul Murphy, Peter Schweighofer, ISBN 0-874-31209-4

Republic HoloNet News Core Edition 14:2:12: CIS Jammer Prototype Destroyed

Star Wars Republic 70: The Dreadnaughts of Rendili, Part 2

Republic Commando: Hard Contact

Tatooine Manhunt

Star Wars: Rebellion