"The people on both sides of the Taiwan Strait are one family," Mr Xi said in a speech televised on China's state broadcaster CCTV. “No one can sever our family bonds, and no one can stop the historical trend of national reunification.”

Weeks before Trump takes office, the Chinese leader is seeking to shore up confidence that China’s economy can withstand threats.

Chinese President Xi Jinping has stressed support for the country’s vulnerable elderly and youth in a new year address that acknowledged the strains on some of the 1.4bn-strong population. Xi’s speech comes after his economic planners have for much of the past four years struggled to restore consumer confidence or address rising youth unemployment and slow wage growth.