| May 2015 | ||
| 06/05/15 | The alliance Okinawa4 was founded. | |
Founding members::  Okinawa4. | ||
 The alliance reaches a population more than 100. | ||
| May 2015 | ||
| 06/05/15 | The alliance Okinawa4 was founded. | |
| Founding members:: Okinawa4. | ||
| The alliance reaches a population more than 100. | ||