Which countries challenge China’s claim to the Taiwan Strait?

Good news! 

Let the Taiwanese people decide about a unification with China!

"Spiegel magazine has reported that two German warships are set to sail through the Taiwan Strait in the coming weeks, becoming the first German naval vessels to do so in 22 years. Germany will join a growing number of Indo-Pacific and European nations that regularly sail through the Taiwan Strait to challenge Beijing’s claims that the Strait is ‘internal waters’ belonging to China. ..."

Which countries challenge China’s claim to the Taiwan Strait? | The Strategist