ANVIL Station

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

Design
Built by the UNSC, 343 Industries, and Microsoft, Anvil Station was created for the Spartan-IV program for use in training human and Sangheili forces. The station consists of a large, cylindrical mid-structure featuring a command center on top. The structure is surrounded by two disk-shaped facilities, with the upper one consisting of several decks used for simulation training, and the lower one comprising of living quarters. At the lower end of the station are docking ports for transport modules. The station has a projected operational life of 250 years and in total there are 7365 humans and Sangheili working on-board.

History
On January 28th, 2552, the designs for the station were approved. 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.

On January 28th 2555, the station saw heavy use of experimental technology in use between Sangheili and Spartans.