Which two countries have the longest land border?
United States and Canada
Canada and Russia
Canada & Russia
Canada
Russia and Kazakhstan
Canada and Russia
Canada
Russia and China
Canada, Russia and Kazakhstan
Canada & Russia
Canada, Russia, Kazakhstan, Russia
Canada
Russia & China
Canada, Russia, China
Canada
Canada & Canada
Canada, Canada, Russia
Canada & China
Russia and Kazakhstan
Russia & Kazakhstan
Canada, Russia
Canada and Canada
Canada & Russia
Canada and Russia
Canada
Canada, Russia and Kazakhstan
Russia and China
Canada
Russia & China
Canada & Russia
Canada & Canada
Russia & Kazakhstan
Russia and Kazakhstan
Canada
Canada, Russia and China
Canada & China
Canada and Canada
Canada, Russia, China
Canada, Russia
Canada and Russia
Canada & Russia
Canada
Russia and China
Canada, Russia, Kazakhstan
Canada, Russia, Kazakhstan, Russia
Canada, Canada, Russia
Canada, Russia and Kazakhstan
Canada & Canada
Canada
Russia and Kazakhstan
Canada–United States
Canada, Russia, Kazakhstan, China
Canada, Russia, China, Russia
Canada & Russia
Canada & China
Canada, China, Russia
Canada
Canada and Afghanistan
Canada, Russia, Kazakhstan, Mongolia
Canada, Russia, Kazakhstan, Kazakhstan
Canada, Russia, China, Mongolia
Canada, Russia, China, Canada
Canada, Russia and China
Canada, Russia, Russia
Canada & Canada
Canada and Canada
China
Canada & Afghanistan
Canada and Russia
Canada
Canada–United States
Russia
Canada, Russia
Canada & China
China
Russia and China
United States, Canada, Russia
Russia and Kazakhstan
United States, Canada, United States
Canada, Russia, China
Canada & Russia
Canada
Canada & Canada
Russia
Canada, Russia and Kazakhstan
Canada & Afghanistan
China
Canada & Mexico
Canada–United States
Canada
Canada and Afghanistan
Canada, Russia, Kazakhstan
Canada & China
Russia & Kazakhstan
Russia
Burma & Canada
Canada, Canada, Russia
Canada and Canada
China
Canada, Russia and China
United States, Canada, United States
United States, Canada, Russia
Russia & China
Canada and Russia
United States, Canada and Russia
Burma & India
Canada
Canada & Afghanistan
Burma & China
Russia and China
Canada & Canada
Canada-China
Russia
Canada/China/Laos
Canada & Mexico
Russia and Kazakhstan
Canada & Russia
United States, Canada, Canada
Canada/China/Brazil
Canada & Kazakhstan
Canada–United States
United States and Canada
Canada, Russia, Mongolia
Canada, Russia, Kazakhstan, Russia
China
Canada, China, Russia
Burma & Russia
Canada & China
Burma & Afghanistan
Canada, Russia
Burma & Canada
Canada
Canada, Russia, Russia
Canada, Russia, Kazakhstan, China
Russia
Burma & Mongolia
Canada, Russia and Kazakhstan
Canada, Russia, China, Russia
Canada and Afghanistan
Russia & Kazakhstan
China
Canada & Afghanistan
Canada-China
Burma & India
Burma & China
Canada & Bolivia
Canada, Russia, Kazakhstan, Mongolia
Canada, Russia, China, Canada
Canada
Canada, Russia, China, Mongolia
Russia
United States, Canada and Russia
Canada-China-Mexico
Burma & Kazakhstan
Canada, Russia, China
Russia and Kazakhstan
Burma & Russia
Canada, Russia, Mongolia, China
United States, Canada, Canada
Canada and Russia
Burma & Afghanistan
China
Russia & Canada
Russia and China
United States of America & Canada
Canada, Russia and China
United States, Canada
Canada/China/Nepal
Russia & China
Canada & Russia
Burma & Mongolia
Canada, Russia, Kazakhstan, Canada
Burma
Burma & Nepal
Canada
Burma & Bolivia
Canada-China
Russia
United States, Canada, China
United States and Canada
United States, Canada, Russia
Canada, Russia, Kazakhstan
Canada, Russia, China, Kazakhstan
Canada & China
China
Canada–United States
United States
Canada & Canada
Burma/China
Canada/U.S.
Canada, Russia
Russia & Kazakhstan
Canada, United States, Canada
Burma & Kazakhstan
Canada
Canada & Afghanistan
Canada, Russia, Kazakhstan, Afghanistan
Canada, United States
Canada, Canada, Russia
Russia
Russia and Kazakhstan