| Country | Disputes - international |
| Bhutan | lacking any treaty describing the boundary, Bhutan and China continue negotiations to establish a common boundary alignment to resolve territorial disputes arising from substantial cartographic discrepancies, the largest of which lie in Bhutan's northwest and along the Chumbi salient |
| Bolivia | Chile and Peru rebuff Bolivia's reactivated claim to restore the Atacama corridor, ceded to Chile in 1884, but Chile offers instead unrestricted but not sovereign maritime access through Chile for Bolivian natural gas; contraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of the border with Argentina |
| Bosnia and Herzegovina | Serbia delimited about half of the boundary with Bosnia and Herzegovina, but sections along the Drina River remain in dispute |
| Botswana | none |
| Bouvet Island | none |
| Brazil | uncontested boundary dispute between Brazil and Uruguay over Braziliera/Brasiliera Island in the Quarai/Cuareim River leaves the tripoint with Argentina in question; smuggling of firearms and narcotics continues to be an issue along the Uruguay-Brazil border; Colombian-organized illegal narcotics and paramilitary activities penetrate Brazil's border region with Venezuela |
| British Indian Ocean Territory | Mauritius and Seychelles claim the Chagos Islands; in 2001, the former inhabitants of the archipelago, evicted 1967 - 1973, were granted UK citizenship and the right of return, followed by Orders in Council in 2004 that banned rehabitation, a High Court ruling reversing the ban, a Court of Appeal refusal to hear the case, and a Law Lords' decision in 2008 denying the right of return; in addition, the United Kingdom created the world's largest marine protection area around the Chagos islands prohibiting the extraction of any natural resources therein |
| British Virgin Islands | none |
| Brunei | per Letters of Exchange signed in 2009, Malaysia in 2010 ceded two hydrocarbon concession blocks to Brunei in exchange for Brunei's sultan dropping claims to the Limbang corridor, which divides Brunei; nonetheless, Brunei claims a maritime boundary extending as far as a median with Vietnam, thus asserting an implicit claim to Lousia Reef |
| Bulgaria | none |
| Burkina Faso | adding to illicit cross-border activities, Burkina Faso has issues concerning unresolved boundary alignments with its neighbors; demarcation is currently underway with Mali, the dispute with Niger was referred to the ICJ in 2010, and a dispute over several villages with Benin persists; Benin retains a border dispute with Burkina Faso around the town of Koualou |
| Burma | over half of Burma's population consists of diverse ethnic groups who have substantial numbers of kin in neighboring countries; the Naf river on the border with Bangladesh serves as a smuggling and illegal transit route; Bangladesh struggles to accommodate 29,000 Rohingya, Burmese Muslim minority from Arakan State, living as refugees in Cox's Bazar; Burmese border authorities are constructing a 200 km (124 mi) wire fence designed to deter illegal cross-border transit and tensions from the military build-up along border with Bangladesh in 2010; Bangladesh referred its maritime boundary claims with Burma and India to the International Tribunal on the Law of the Sea; Burmese forces attempting to dig in to the largely autonomous Shan State to rout local militias tied to the drug trade, prompts local residents to periodically flee into neighboring Yunnan Province in China; fencing along the India-Burma international border at Manipur's Moreh town is in progress to check illegal drug trafficking and movement of militants; 140,000 mostly Karen refugees fleeing civil strife, political upheaval and economic stagnation in Burma live in remote camps in Thailand near the border |
| Burundi | Burundi and Rwanda dispute two sq km (0.8 sq mi) of Sabanerwa, a farmed area in the Rukurazi Valley where the Akanyaru/Kanyaru River shifted its course southward after heavy rains in 1965; cross-border conflicts among Tutsi, Hutu, other ethnic groups, associated political rebels, armed gangs, and various government forces persist in the Great Lakes region |
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This page was last updated on 3 February, 2012 |
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