| Term |
Age |
History |
|---|
| 1 |
12 |
Failed to qualify for Army Academy (Military Academy). |
| 1 |
12 |
Submitted to the draft. |
| 1 |
12 |
Became a Dolphin Military (Underwater Commando) with the new title Private. |
| 1 |
15 |
Victim of a crime |
| 2 |
16 |
Voluntarily left Underwater Commando |
| 2 |
16 |
Became a Marine (Ground Assault) with the new title Marine. |
| 2 |
19 |
Trapped behind enemy lines. |
| 2 |
20 |
Promoted to Marine (Ground Assault) rank 1 with the new title Lance Corporal. |
| 3 |
20 |
Continued as Marine (Ground Assault). |
| 3 |
23 |
Trapped behind enemy lines. |
| 3 |
24 |
Promoted to Marine (Ground Assault) rank 2 with the new title Corporal. |
| 4 |
24 |
Attempted to change assignments. |
| 4 |
24 |
Switched to Marine (Star Marine) with previous rank. |
| 4 |
26 |
Trapped behind enemy lines. |
| 5 |
28 |
Attempted to change assignments. |
| 5 |
28 |
Failed to qualify for Ground Assault (Marine). |
| 5 |
28 |
Continued as Marine (Star Marine). |
| 5 |
29 |
On the front lines of a planetary assault and occupation. |
| 5 |
32 |
Promoted to Marine (Star Marine) rank 3 with the new title Lance Sergeant. |
| 6 |
32 |
Continued as Marine (Star Marine). |
| 6 |
34 |
Commanding officer takes an interest in Carole Foster's career. |
| 6 |
36 |
Promoted to Marine (Star Marine) rank 4 with the new title Sergeant. |
| 7 |
36 |
Continued as Marine (Star Marine). |
| 7 |
39 |
On the front lines of a planetary assault and occupation. |
| 7 |
40 |
Promoted to Marine (Star Marine) rank 5 with the new title Gunnery Sergeant. |
| 8 |
40 |
Continued as Marine (Star Marine). |
| 8 |
43 |
On the front lines of a planetary assault and occupation. |
| 8 |
44 |
Promoted to Marine (Star Marine) rank 6 with the new title Sergeant Major. |