border countries: Armenia 268 km, Azerbaijan 9 km, Bulgaria 240 km,
Georgia 252 km, Greece 206 km, Iran 499 km, Iraq 331 km, Syria 822 km

Turkmenistan:
total: 3,736 km

border countries: Afghanistan 744 km, Iran 992 km, Kazakhstan 379
km, Uzbekistan 1,621 km

Turks and Caicos Islands:
0 km

Tuvalu:
0 km

Uganda:
total: 2,698 km

border countries: Democratic Republic of the Congo 765 km, Kenya
933 km, Rwanda 169 km, Sudan 435 km, Tanzania 396 km

Ukraine:
total: 4,558 km

border countries: Belarus 891 km, Hungary 103 km, Moldova 939 km,
Poland 428 km, Romania (south) 169 km, Romania (west) 362 km, Russia
1,576 km, Slovakia 90 km

United Arab Emirates:
total: 867 km

border countries: Oman 410 km, Saudi Arabia 457 km

United Kingdom:
total: 360 km

border countries: Ireland 360 km

United States:
total: 12,248 km

border countries: Canada 8,893 km (including 2,477 km with Alaska),
Cuba 29 km (US Naval Base at Guantanamo Bay), Mexico 3,326 km

note: Guantanamo Naval Base is leased by the US and thus remains
part of Cuba

Uruguay:
total: 1,564 km

border countries: Argentina 579 km, Brazil 985 km

Uzbekistan:
total: 6,221 km

border countries: Afghanistan 137 km, Kazakhstan 2,203 km,
Kyrgyzstan 1,099 km, Tajikistan 1,161 km, Turkmenistan 1,621 km

Vanuatu:
0 km

Venezuela:
total: 4,993 km

border countries: Brazil 2,200 km, Colombia 2,050 km, Guyana 743 km

Vietnam:
total: 4,639 km

border countries: Cambodia 1,228 km, China 1,281 km, Laos 2,130 km

Virgin Islands:
0 km

Wake Island:
0 km

Wallis and Futuna:
0 km

West Bank:
total: 404 km

border countries: Israel 307 km, Jordan 97 km

Western Sahara:
total: 2,046 km

border countries: Algeria 42 km, Mauritania 1,561 km, Morocco 443 km

World:
the land boundaries in the world total 251,480.24 km (not
counting shared boundaries twice)

Yemen:
total: 1,746 km

border countries: Oman 288 km, Saudi Arabia 1,458 km

Yugoslavia:
total: 2,246 km

border countries: Albania 287 km, Bosnia and Herzegovina 527 km,
Bulgaria 318 km, Croatia (north) 241 km, Croatia (south) 25 km,
Hungary 151 km, The Former Yugoslav Republic of Macedonia 221 km,
Romania 476 km

Zambia:
total: 5,664 km

border countries: Angola 1,110 km, Democratic Republic of the Congo
1,930 km, Malawi 837 km, Mozamb