Asmara

Asmara was a UNSC colony in an unspecified system. Sometime relatively early in the Human-Covenant War a battle took place on Asmara, which involved Gage Yevgenny's team of Orbital Drop Shock Troopers. One ODST to die in the battle was Mason, after a Sangheili speared him along with ten other ODSTs with an Energy Sword before Gage got off a near point-blank shot with a missile launcher.

The colony's fate is unknown, however it was most likely destroyed by the Covenant.

Trivia
The colony is likely named for the city of Asmara, the capital of Eritrea.