contraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of its border regions with all of its neighbors (Argentina, Brazil, Chile, Paraguay, and Peru)

Bolivia-Chile: despite tariff-free access to ports in southern Peru and northern Chile, Bolivia persists with its long-standing claims to regain sovereign access to the Pacific Ocean

Bolivia-Peru: despite tariff-free access to ports in southern Peru and northern Chile, Bolivia persists with its long-standing claims to regain sovereign access to the Pacific Ocean; smuggling of archaeological artifacts from Peru to Bolivia, illegal timber and narcotics smuggling, human trafficking, and falsified documents are current issues 

Bolivia-Brazil: the Roboré Accord of March 29, 1958 placed the long-disputed Isla Suárez/Ilha de Guajará-Mirim, a fluvial island on the Río Mamoré, between the two towns of Guajará-Mirim (Brazil) and Guayaramerin (Bolivia), under Bolivian administration but did not resolve the sovereignty dispute

Bolivia-Argentina: contraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of the border 

Bolivia-Paraguay: on April 27, 2009, the president of Argentina hosted the presidents of Bolivia and Paraguay together with representatives of the five other guarantor states -- Brazil, Chile, Peru, the US, and Uruguay -- to the signing for the Final Record of the Boundary Commission in execution of the 1938 Peace Treaty between Bolivia and Paraguay

piracy remains a problem in the Malacca Strait

Malaysia-Brunei: per Letters of Exchange signed in 2009, Malaysia in 2010 ceded two hydrocarbon concession blocks to Brunei; in 2009, the media reported that Brunei had dropped its claims to the Limbang corridor, but Brunei responded that the subject had never been discussed during recent talks between the two countries

Malaysia-China-Philippines-Vietnam: while the 2002 "Declaration on the Conduct of Parties in the South China Sea" has eased tensions over the Spratly Islands, it is not the legally binding "code of conduct" sought by some parties, which is currently being negotiated between China and ASEAN; Malaysia was not party to the March 2005 joint accord among the national oil companies of China, the Philippines, and Vietnam on conducting marine seismic activities in the Spratly Islands

Malaysia-Indonesia: land and maritime negotiations with Indonesia are ongoing, and disputed areas include the controversial Tanjung Datu and Camar Wulan border area in Borneo and the maritime boundary in the Ambalat oil block in the Celebes Sea

Malaysia-Philippines: Philippines retains a dormant claim to the eastern part of Malaysia's Sabah State in northern Borneo

Malaysia-Singapore: disputes continue over deliveries of fresh water to Singapore, Singapore's land reclamation, bridge construction, and maritime boundaries in the Johor and Singapore Straits; in 2008, the International Court of Justice awarded sovereignty of Pedra Branca (Pulau Batu Puteh/Horsburgh Island) to Singapore, and Middle Rocks to Malaysia but did not rule on maritime regimes, boundaries, or disposition of South Ledge

Malaysia-Thailand: in 2008, separatist violence in Thailand's predominantly Muslim southern provinces prompts Malaysia to take measures to close and to monitor the border with Thailand to stem terrorist activities

none identified