The water bordered by the Southern United States, Mexico and Cuba will be critical to shipping lanes and vacationers.

President Trump’s territorial assertions sparked a round of rethinking by mapmakers and teachers, snark on social media and sarcasm by at least one other world leader.

Since the late 2010s, China has shown increasing sensitivity to the environmental and socio-economic impacts of its distant-water fishing (DWF) growth, as well as the reputational harm partly ...