Answer;
-Bering Strait
Explanation;
-The Bering Strait is a waterway that separates Russia from North America. It lies above the Bering Land Bridge (BLB), also called Beringia a submerged landmass that once connected the Siberian mainland with North America.
-To the north the Bering Sea connects with the Arctic Ocean through the Bering Strait, at the narrowest point of which the two continents are about 53 miles (85 kilometres) apart. The boundary between the United States and Russia passes through the sea and the strait.
Relating to an established set of principles governing a state
In Puerto Rico it was useful, in Cuba not so much. Cubans perceived the outcome as occupation and didn't want to have United States occupation in their country. Puerto-Ricans had a form of a civilian government with independence and Puerto-rican citizenship but the country belonged to US.
Congress has the power to establish post offices and post roads, issue patents and copyrights, fix standards of weights and measures, establish courts inferior to the Supreme Court, and
to make all laws which shall be necessary and proper for carrying into execution.
