The Tenorran Defense Navy is the playable branch of the Tenorran Defense Union, which consists of several advanced countries, spread across most of the northern hemisphere of the planet.
Their units are, in general, fast with long range weapons, but lacking in armor. Their primary weapons are missiles, supplemented by varying numbers of gun turrets. The TDN Air Force is also the most powerful in the game. Furthermore, they make ample use of electronic warfare, as well as a variety of EMP weapons.