Serbia-Bosnia and Herzegovina: Serbia delimited about half of the boundary with Bosnia and Herzegovina, but sections along the Drina River remain in dispute

Serbia-Bulgaria: none identified

Serbia-Croatia: Serbia and Croatia dispute their border along the Danube; Serbia claims the border is the median between the current Danube shorelines, with the land to the eastern side of the median belonging to Serbia; Croatia contends that the boundary is demarcated according to historic maps, despite the river having meandered since then

Serbia-Hungary: none identified

Serbia-Kosovo: Serbia with several other states protested the US and other states' recognition of Kosovo's declaration of its status as a sovereign and independent state in February 2008; ethnic Serbian municipalities along Kosovo's northern border challenge final status of Kosovo-Serbia boundary; since 1999, NATO-led Kosovo Force peacekeepers under UN Interim Administration Mission in Kosovo (UNMIK) authority have continued to keep the peace within Kosovo between the ethnic Albanian majority and the Serb minority; in October 2021, NATO-led KFOR increased patrols along the border with Serbia to deescalate hostilities caused by a dispute over license plates

Serbia-Montenegro: the former republic boundary serves as the boundary until a line is formally delimited and demarcated

Serbia-North Macedonia: none identified

Serbia-Romania: none identified

Israel-Gaza Strip: Israel withdrew its settlers and military from the Gaza Strip and from four settlements in the West Bank in August 2005

Israel-Syria: Golan Heights is Israeli-controlled (Lebanon claims the Shab'a Farms area of Golan Heights); in March 2019, the US Government recognized Israel's sovereignty over the Golan Heights; since 1948, about 350 peacekeepers from the UN Truce Supervision Organization headquartered in Jerusalem monitor ceasefires, supervise armistice agreements, prevent isolated incidents from escalating, and assist other UN personnel in the region

Israel-West Bank: West Bank is Israeli-occupied with current status subject to the Israeli-Palestinian Interim Agreement - permanent status to be determined through further negotiation; in 2002, Israel began construction of a "seam line" separation barrier along parts of the Green Line and within the West Bank; as of mid-2020, plans were to continue barrier construction

Pakistan-Afghanistan: since 2002, with UN assistance, Pakistan has repatriated about 5.3 million Afghan refugees, leaving about 2.74-3 million; Pakistan has sent troops across and built fences along some remote tribal areas of its treaty-defined Durand Line border with Afghanistan, which serve as bases for foreign terrorists and other illegal activities; in February 2022, amid skirmishes between Taliban and Pakistani forces, Pakistan announced its intent to finish constructing the barbed wire fence along the Durand Line and bring nearby areas under its control; Afghan, Coalition, and Pakistan military meet periodically to clarify the alignment of the boundary on the ground and on maps

Pakistan-China: none identified

Pakistan-India: Kashmir remains the site of the world's largest and most militarized territorial dispute with portions under the de facto administration of China (Aksai Chin), India (Jammu and Kashmir), and Pakistan (Azad Kashmir and Northern Areas); UN Military Observer Group in India and Pakistan has maintained a small group of peacekeepers since 1949; India does not recognize Pakistan's ceding historic Kashmir lands to China in 1964; India and Pakistan have initiated discussions on defusing the armed standoff in the Siachen glacier region; the Siachen glacier is claimed by both countries and militarily occupied by India: Pakistan opposed India's fencing the highly militarized Line of Control (completed in 2004) and the construction of the Baglihar Dam on the Chenab River (opened in 2008) in Jammu and Kashmir, which is part of the larger dispute on water sharing of the Indus River and its tributaries; to defuse tensions and prepare for discussions on a maritime boundary, India and Pakistan seek technical resolution of the disputed boundary in Sir Creek estuary at the mouth of the Rann of Kutch in the Arabian Sea; Pakistani maps continue to show Junagadh in India's Gujarat State as part of Pakistan

Pakistan-Iran: none identified