Denmark is located on the northern border of Germany.
China
Canada
Germany and Belgium
Belarus.
Switzerland.
Canada touches America's northern border. It is the longest international border in the world, stretching over 5,500 miles from the Atlantic Ocean in the east to the Pacific Ocean in the west.
New York touches the northern border of Pennsylvania.
Idaho does
Denmark because it's east border touches the Baltic Sea while the west border touches the North Sea, which is unlike Germany. As seen in this link for map photo...
border
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