| 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 (Guardian). |
| 1 |
13 |
A brutal amphibious warfare campaign forces Melba Halpine to spend as much time fighting out of water as in. |
| 2 |
16 |
Continued as Dolphin Military (Guardian). |
| 2 |
18 |
Receive special training in underwater mine disposal. |
| 2 |
20 |
Promoted to Dolphin Military (Guardian) rank 1. |
| 3 |
20 |
Continued as Dolphin Military (Guardian). |
| 3 |
21 |
An investigation uncovers links between Melba Halpine's unit’s commander and a radical faction. |
| 4 |
21 |
Became a Dolphin Civilian (Nomad). |
| 4 |
22 |
Spend an extensive period living out of water among humans. |
| 4 |
25 |
Promoted to Dolphin Civilian (Nomad) rank 1. |