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: 4,566 km
border countries: Belarus 891 km, Hungary 103 km, Moldova 940 km,
Poland 428 km, Romania (south) 176 km, Romania (southwest) 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: 12,034 km
border countries: Canada 8,893 km (including 2,477 km with Alaska),
Mexico 3,141 km
note: US Naval Base at Guantanamo Bay, Cuba is leased by the US and
is part of Cuba; the base boundary is 28 km
United States Pacific Island Wildlife Refuges
none
Uruguay
total: 1,648 km
border countries: Argentina 580 km, Brazil 1,068 km