2553

2553 was a year in the Military Calendar.

Background
2553 was the last year in the Human-Covenant War.

With Truth dead, the Halos deactivated, and the Flood destroyed, the Battle of the Ark brought about the beginning of end of the Human-Covenant War the previous year.

March 3rd
Installation 04 (II) is activated, resulting in its own destruction. A monument is erected in the Kenyan Savannah in remembrance of those who gave their lives in the war including SPARTAN-117 who is labeled MIA. The Arbiter and his surviving brethren departed Earth for their homeworld, Sanghelios.