China is using control over global seas as a tool of “political coercion,” the US ambassador to the United Kingdom warned, as President Donald Trump is restating his interest in Greenland for that very same reason. China is seeking to turn ports, ships and supply chains into instruments of geopolitical leverage, US Ambassador to the UK Warren Stephens warned in a statement to the International Maritime Organization Council (IMO). “I spoke about a challenge that we cannot afford to ignore: China’s systematic effort to use maritime power as an instrument of political coercion,” Stephens wrote in a Truth Social post after...