In 2155, Colin and his mother Charis were interviewed by Gannet Brooks on Alpha Centauri III. Colin saw his mother off onto her transport to Earth, then boarded another transport to Delta Pavonis to join the Military Assault Command Organization and undergo basic there.
In 2156, Idaho took part in MACO landings on Berengaria VII during the Second Battle of Berengaria. In the course of the battle, Idaho conversed with his superior Corporal Selma Guitierrez and the two fought together after their unit was wiped out. Idaho survived the battle with minor injuries. (ENT novel: Beneath the Raptor's Wing)