| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Scientist (Scholar). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Army (Infantry) with the new title Private. |
| 1 |
20 |
Advanced training in a specialist field |
| 1 |
22 |
Promoted to Army (Infantry) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Continued as Army (Infantry). |
| 2 |
26 |
Surrounded and outnumbered by the enemy, Jo Greerson hold out until relief arrives. |
| 3 |
26 |
Continued as Army (Infantry). |
| 3 |
27 |
Gained a contact. |
| 3 |
30 |
Promoted to Army (Infantry) rank 2 with the new title Corporal. |
| 4 |
30 |
Continued as Army (Infantry). |
| 4 |
31 |
Assigned to a planet with a hostile or wild environment. |
| 4 |
34 |
Promoted to Army (Infantry) rank 3 with the new title Lance Sergeant. |
| 5 |
34 |
Continued as Army (Infantry). |
| 5 |
36 |
Given a special assignment or duty in Jo Greerson's unit. |
| 5 |
38 |
Promoted to Army (Infantry) rank 4 with the new title Sergeant. |
| 6 |
38 |
Attempted to change assignments. |
| 6 |
38 |
Switched to Army (Cavalry) with previous rank. |
| 6 |
40 |
Assigned to a peacekeeping role. |
| 6 |
42 |
Promoted to Army (Cavalry) rank 5 with the new title Gunnery Sergeant. |
| 7 |
42 |
Continued as Army (Cavalry). |
| 7 |
43 |
Advanced training in a specialist field |
| 7 |
46 |
Promoted to Army (Cavalry) rank 6 with the new title Sergeant Major. |
| 8 |
46 |
Continued as Army (Cavalry). |
| 8 |
48 |
Advanced training in a specialist field |
| 8 |
50 |
Promoted to Army (Cavalry) rank 7. |