Popavalle (Popa Falls); Botswana has built
electric fences to stem the thousands of Zimbabweans who flee to
find work and escape political persecution; Namibia has long
supported and in 2004 Zimbabwe dropped objections to plans between
Botswana and Zambia to build a bridge over the Zambezi River,
thereby de facto recognizing their short, but not clearly delimited
Botswana-Zambia boundary

Bouvet Island
none

Brazil
unruly region at convergence of Argentina-Brazil-Paraguay
borders is locus of money laundering, smuggling, arms and illegal
narcotics trafficking, and fundraising for extremist organizations;
uncontested dispute with Uruguay over certain islands in the
Quarai/Cuareim and Invernada boundary streams and the resulting
tripoint with Argentina; in 2004 Brazil submitted its claims to the
United Nations Convention on the Law of the Sea (UNCLOS) to extend
its maritime continental margin

British Indian Ocean Territory
Mauritius and Seychelles claim the
Chagos Archipelago including Diego Garcia; in 2001 the former
inhabitants of the Chagos Archipelago, evicted in 1965 and now
residing chiefly in Mauritius, were granted UK citizenship and the
right to repatriation; the UK resists the Chagossians' demand for an
immediate return to the islands; repatriation is complicated by the
exclusive US military lease of Diego Garcia that restricts access to
the largest island in the chain;

British Virgin Islands
none

Brunei
in 2003 Brunei and Malaysia ceased gas and oil exploration in
their disputed offshore and deepwater seabeds and negotiations have
stalemated prompting consideration of international legal
adjudication; Malaysia's land boundary with Brunei around Limbang is
in dispute; Brunei established an exclusive economic fishing zone
encompassing Louisa Reef in southern Spratly Islands in 1984 but
makes no public territorial claim to the offshore reefs; the 2002
"Declaration on the Conduct of Parties in the South China Sea" has
eased tensions in the Spratly Islands but falls short of a legally
binding "code of conduct" desired by several of the disputants

Bulgaria
none

Burkina Faso
two villages are in dispute along the border with
Benin; Benin accuses Burkina Faso of moving boundary pillars;
Burkina Faso border regions remain a staging area for Liberia and
Cote d'Ivoire rebels and an asylum for refugees caught in local
fighti