The Sojourner Truth was constructed in early 2530 when the Human-Covenant War was still young. It particpated briefly in a battle against Insurrectionists that hijacked another Halcyon cruiser and succeeded. Following that, it didn't recieve active duty again until the following year. Following this, in Operation: SOJOURNER TRUTH the Spring and the Truth were sent to extract civilians from a colony ship that was being attacked by the Covenant. With the Spring being it's cover the Sojourner Truth was able to extract the Civilians and succeed in the mission.