Slovakia
total: 1,474 km
border countries: Austria 91 km, Czech Republic 197 km, Hungary 676
km, Poland 420 km, Ukraine 90 km
Slovenia
total: 1,086 km
border countries: Austria 330 km, Croatia 455 km, Hungary 102 km,
Italy 199 km
Solomon Islands
0 km
Somalia
total: 2,340 km
border countries: Djibouti 58 km, Ethiopia 1,600 km, Kenya 682 km
South Africa
total: 4,862 km
border countries: Botswana 1,840 km, Lesotho 909 km, Mozambique 491
km, Namibia 967 km, Swaziland 430 km, Zimbabwe 225 km
South Georgia and South Sandwich Islands
0 km
Spain
total: 1,917.8 km
border countries: Andorra 63.7 km, France 623 km, Gibraltar 1.2 km,
Portugal 1,214 km, Morocco (Ceuta) 6.3 km, Morocco (Melilla) 9.6 km
Spratly Islands
0 km
Sri Lanka
0 km
Sudan
total: 7,687 km
border countries: Central African Republic 1,165 km, Chad 1,360 km,
Democratic Republic of the Congo 628 km, Egypt 1,273 km, Eritrea 605
km, Ethiopia 1,606 km, Kenya 232 km, Libya 383 km, Uganda 435 km