The Federal Erusian Navy is one of the world's most prestigious naval forces, third in prestige only to those of Osea and Yuktobania. It boasts that its "invincible" Aegir Fleet is untouchable and unsinkable for any reason possible from all points of attack: land, air, sea, and even elsewhere (like space). This certain naval force is one of the most highly skilled, highly equipped, and highly trained on the face of the world's seafaring militaries.
The Erusian Aegir Fleet, nicknamed the Invincible Fleet due to the fact that none of the ships in the fleet were ever sunk until their demise at the hands of Mobius One and the ISAF air force. With a battle record similar to that of Osea's Third Fleet or Emmeria's Second Fleet, the Aegir Fleet is centered around its flagship Tanager.
Ticonderoga-class guided-missile Aegis cruiser (CG).
- FENS Raven
Iowa-class battleship (BB).
- FENS Tanager (Flagship)
Kitty Hawk-class nuclear-powered aircraft carrier (CVN).
- FENS Geofon
Hatakaze-class guided-missile destroyers (DDG) - known in the FENF as cruisers.
- FENS Beluga
- FENS Lazuli
- FENS Kolga
- FENS Fenris
Cassard-class frigates (FF).
- FENS Herne
- FENS Thiassi
- FENS Taisch
Los Angeles-class nuclear-powered submarines (SSN).
- FENS Beowolf Pi
- FENS Beowolf Nu
1x Ticonderoga-class Aegis cruiser (CG)
2x Iowa-class battleship (BB)
1x Kitty Hawk-class aircraft carrier (CVN)
5x Hatakaze-class destroyer (DDG) - classed as cruisers in the Erusian Navy
15x Cassard-class destroyer (DD)
4x Los Angeles-class submarines (SSN)
2+ Pegasus-class missile fast attack/patrol hydrofoil (PHM)
1+ Buffalo Soldier-class container ship (AK)
1+ Mars-class combat stores ship (AFS)
2+ Tarawa-class landing ship (LHA)
1x La Fayette-class frigate (FLF)