As competition for resources in the Arctic Ocean intensifies, nations are staking claims to swaths of undersea territory where oil, gas, and other minerals could someday be found and mined.

belonging to the United States.... After the Constitution was ratified in 1788, the new United States government assumed ownership of the vast Northwest Territory that had been ceded to the pre ...

Trump floated the prospect of buying the vast Arctic territory during his first term in 2019, and has said US control of Greenland is an "absolute necessity" for international security.