What two countries share the world's longest undefended border?
Question #133364. Asked by Hyack.
Last updated Nov 15 2013.
Originally posted Nov 15 2013 12:24 AM.
Ted_Striker
Answer has 2 votes
Ted_Striker 12 year member
103 replies
Answer has 2 votes.
The Canada-United States border, officially known as the International Boundary. The International Boundary is commonly referred to as the world's longest undefended border, but this is true only in the military sense, as civilian law enforcement is present.
https://en.wikipedia.org/wiki/Canada%E2%80%93United_States_border