Solidarity is Strength is a side quest which offers rewards for upgrading the Alliance Center.
| Requirement | Reward |
|---|---|
| Upgrade Alliance Center to Level 2 |  1,250  750 |
| Upgrade Alliance Center to Level 3 | 1,750 2,500 |
| Upgrade Alliance Center to Level 4 | 2,500 3,250 |
| Upgrade Alliance Center to Level 5 | ? ? |
| Upgrade Alliance Center to Level 6 | 8,500 8,750  3,500 |
| Upgrade Alliance Center to Level 7 | 10,250 10,250 4,500 |
| Upgrade Alliance Center to Level 8 | 13,000 13,250 5,750 |
| Upgrade Alliance Center to Level 9 | 14,250 12,500 6,000 |
| Upgrade Alliance Center to Level 19 | 231,000 231,000 121,500 |
| Upgrade Alliance Center to Level 20 | 347,500 350,750 182,000 |
| Upgrade Alliance Center to Level 21 | 521,250 526,250 273,000 |