Name the 50 pairs of countries which share a land border which have the largest difference (in terms of ratio) in population. Dependent territories included as part of their countries and country populations include all dependent territories. Borders included over man-made land, but not bridges/tunnels. Enter countries one after the other in either order, i.e. ‘FranceGermany’ or ‘USCanada’ – use the following abbreviations for these countries: US, UK, DRC, CAR, UAE, and just ‘Congo’ for Republic of the Congo. Number shown is ratio of larger country’s population to smaller country’s.