| March 2018 | ||
| 28/03/18 | The alliance MENTAWAI was founded. | |
Founding members::  MENTAWAI. | ||
 The alliance reaches a population more than 100. | ||
| June 2018 | ||
| 09/06/18 | The alliance reaches a population more than 1,000. | |
| March 2018 | ||
| 28/03/18 | The alliance MENTAWAI was founded. | |
| Founding members:: MENTAWAI. | ||
| The alliance reaches a population more than 100. | ||
| June 2018 | ||
| 09/06/18 | The alliance reaches a population more than 1,000. | |