President-elect Donald Trump said Tuesday that he would move to try to rename the Gulf of Mexico to the “Gulf of America.”

President-elect Donald J. Trump said Tuesday that he planned to change the name of the Gulf of Mexico to the “Gulf of America,” one of several foreign policy proposals that left world leaders reeling. “It has a beautiful ring,” he said of the proposed name change for the body of water that borders several U.S. and Mexican states.

For decades, history books and maps have labeled the big body of water that sits off the coast of the southern United States and Mexico as the Gulf of Mexico.