10 longest borders in the world

10. United States border with Mexico

• border length: 3,141 km

9. The border between China and India

• border length: 3,380 km

8. Brazil’s border with Bolivia

• border length: 3,400 km

7. Russia’s border with Mongolia

• border length: 3,543 km

6. Russia’s border with China

• border length: 3,645 km

5. The border between India and Bangladesh

• border length: 4,053 km

4. Mongolia’s border with China

• border length: 4,677 km

3. The border between Argentina and Chile

• border length: 5,300 km

2. Russia’s border with Kazakhstan

• border length: 6,846 km

1. Canada’s border with the United States

• border length: 8,893 km