Borders of the United States
The US political borders can be classified into international and internal. An international boundary delineates the space between sovereign nations. Internal boundaries are more bureaucratic and used to break up space into manageable parts of administration.
International border states of the US
The U.S. shares international land borders with Canada and Mexico, and sea-borders with Bahamas and Cuba.
Below is the map showing the nearest country border to everywhere in the United States.