india and china share the longest border in the world between two countries.
india and china share the longest border in the world between two countries.
longest border in the world between two countries?
india
Na
Na
list of areas disputed by canada and the united states









































although canada and the united states share the longest border between two countries, there is a long history of disputes about the border's demarcation.









































section::::current disputes.
list of areas disputed by canada and the united states