| Term |
Age |
History |
|---|
| 1 |
18 |
Entered a spacer community. |
| 1 |
19 |
War breaks out, triggering a mandatory draft. |
| 1 |
20 |
Left the spacer community. |
| 2 |
20 |
Became a Marine (Marine Support) with the new title Marine. |
| 2 |
21 |
Advanced training in a specialist field |
| 2 |
24 |
Commissioned in Marine (Marine Support) with the new title Lieutenant. |
| 3 |
24 |
Continued as Marine (Marine Support). |
| 3 |
28 |
Commanding officer takes an interest in Dorsey Holmes's career. |
| 3 |
28 |
Promoted to Marine (Marine Support) officer rank 2 with the new title Captain. |