Nauru has severed diplomatic ties with Taiwan in favour of China, just days after Taiwanese voters elected a new president.
Nauru's government said it would no longer recognise Taiwan as a separate country but rather as an inalienable part of China's territory.
China has over the past years been poaching Taiwan's diplomatic allies.
Nauru's diplomatic switch leaves just 12 countries still keeping diplomatic ties with Taipei, including Guatemala, Paraguay and the Marshall Islands.