Donald Trump’s comments about China’s island-building in the South China Sea attracted some analysis by the US-based fact-checking site Politifact. The article mentions the province of Hainan.
“Hainan Island, which is roughly the size of Belgium, is not one of the contested territories.”
Hainan at 12,822 square miles is close to the size of Belgium (11,787) but a more accurate measure would be Moldova at 13,068 square miles.
We rate Politifact’s claim to be “Mostly True”.