The Duro Defense Force, or DDF, was the NRDF defense force assigned to the planet Duro during the Yuuzhan Vong War. When the extragalactic Yuuzhan Vong invaded Duro in 26 ABY, the DDF attempted to defend the orbital cities and launched starfighters to push back the Yuuzhan Vong attack. However, the Yuuzhan Vong took Duro in the end and the DDF was presumably destroyed. If any part of the DDF survived and managed to escape, they would have probably been absorbed into the rest of the normal Defense Forces.
- The New Jedi Order: Balance Point (First appearance)