It's not a well-known fact that America's largest trade partner is Canada. Billions of dollars worth of goods cross the border between the 2 countries each month. And Americans and Canadians seem to like each other's countries too - in July alone this year, 1.7 million Americans visited Canada, while 3.8 million Canadians visited the United States. The border between the 2 countries is the longest undefended one in the world - 8,891 kilometres (5,525 mi), including 2,475 kilometres (1,538 mi) with Alaska, although there is, of course, significant border security. Almost 200 years have passed since a shot was fired in anger across the border.
We are fortunate to live within a 20-minute drive of the border. Since I was near the St. Lawrence River today, I went to see one of the border crossings.
(70-200mm f22 1/25 sec ISO200)