| October 2019 |
| 18/10/19 | The alliance ACE (today: USO) was founded. |
| Founding members::  Mista Ballista. |
|  The alliance reaches a population more than 100. |
|
| 21/10/19 | The alliance is now known as UGW. |
| Joining of:Warpig. |
|
| 22/10/19 | Joining of:Macvey. |
| November 2019 |
|
| 01/11/19 | Joining of:kfitz. |
| The alliance reaches a population more than 1,000. |
|
| 02/11/19 | Joining of:pommetjepom. |
|
| 03/11/19 | Leaving of:pommetjepom. |
|
| 06/11/19 | Joining of:vussa. |
|
| 07/11/19 | Leaving of:kfitz. |
|
| 09/11/19 | Joining of:xsebyz. |
| Deletion of:Warpig. |
|
| 16/11/19 | The alliance is now known as USO. |
| Joining of:Sisoteuz. |
| Deletion of:vussa. |
|
| 17/11/19 | Leaving of:xsebyz. |
| December 2019 |
|
| 28/12/19 | The alliance reaches a population more than 5,000. |
|
| 30/12/19 | Deletion of:Sisoteuz. |
| January 2020 |
|
| 28/01/20 | Deletion of:Mista Ballista. |
|
| 31/01/20 | Deletion of:Macvey. |
| The alliance USO was canceled. |