ANVIL Station

Anvil Station is a secret UNSC space station in orbit over an unknown planet. The Spartan-IVs use the station to run War Games exercises in which they hone their combat skills and test experimental technology.

History
As early as 2553, the ANVIL initiative saw a number of very select joint training engagements between Spartan-IVs and Sangheili of Arbiter Thel 'Vadam's Swords of Sanghelios.

List of appearances

 * Halo Online