
A border barrier, border fence or border wall is a separation barrier that runs along or near an international border. Such barriers are typically constructed for border control purposes such as curbing illegal immigration, human trafficking, and smuggling.[1] [2] Some such barriers are constructed for defence or security reasons. In cases of a disputed or unclear border, erecting a barrier can serve as a de facto unilateral consolidation of a territorial claim that can supersede formal delimitation. A border barrier does not usually indicate the location of the actual border, and is usually constructed unilaterally by a country, without the agreement or cooperation of the other country.
Examples of border walls include the ancient Great Wall of China, a series of walls separating China from nomadic empires to the north. The construction of border barriers increased in the early 2000s; half of all the border barriers built since World War II, which ended in 1945, were built after 2000.[3]
Note: The table can be sorted alphabetically or chronologically using the icon.
| Name | Countries affected | Built and maintained by | Date built | data-sort-type="number" | Length (km) | Deaths during crossing attempts | References |
|---|---|---|---|---|---|---|---|
| Argentina–Paraguay | Argentina | 2014 | 1.3 | [4] [5] [6] | |||
| Austrian border barrier | Austria | 2015 | 3.7 | [7] | |||
| Morocco- Algeria | Morocco | 2014 | 150 km | [8] [9] | |||
| Algeria- Morocco | Algeria and Morocco | Algeria | 2013 | 150 km | [10] [11] | ||
| Belize–Guatemala | Belize | Proposed, agreed | N/A | ||||
| Botswana–Zimbabwe | Botswana | 2003 | 500 | 8 | [12] | ||
| Brunei–Malaysia | Brunei | 2005 | 20 | ||||
| Bulgaria–Turkey barrier | Bulgaria | 2014 | 30 | [13] | |||
| Calais border barrier | United Kingdom and France | 2016 | 1 | [14] | |||
| Ceuta border fence | Spain | 2001 | 8 | 13–18 depending on estimates.[15] | |||
| Costa Rica–Nicaragua | Costa Rica | Proposed | N/A | ||||
| Green Line (Cyprus) | 1964 | 180 | |||||
| Chinese–Korean border fence | China | 2011 | 1,416 | [16] | |||
| Chile–Bolivia ditch | Chile and Bolivia | Chile | 2022 (Under construction) | N/A | [17] | ||
| China-Vietnam/Myanmar border wall | China, Vietnam and Myanmar | China | 2021 | 3,468 | [18] [19] [20] | ||
| Denmark–Germany border fence | Denmark | 2019 | 70 | [21] [22] [23] | |||
| Dominican–Haiti border fence | Dominican Republic | Partially completed | N/A | [24] [25] | |||
| Egypt–Gaza barrier | Egypt | 1979, low concrete wall (2.5–3m tall) with barbed wire as part of initial security measures; 2009 Underground steel barrier (10–11 km long, 18m deep) to block smuggling tunnels. | 3.1 | [26] [27] | |||
| Estonia–Russia barrier | Estonia | 2018 | 110 | [28] | |||
| Finland–Russia border barrier | Finland | 2023 | 200 | [29] [30] | |||
| Greece–Turkey border | Greece | 2012, expanded 2021[31] [32] | 200 | [33] [34] [35] [36] | |||
| North Macedonia–Greece barrier | North Macedonia | 2015 | 30 | [37] [38] [39] | |||
| Malaysia–Thailand border | Thailand | 70's, 2001 | 650 | [40] [41] | |||
| Melilla border fence | Spain | 1998 | 11 | ||||
| Myanmar -Bangladesh border fence | Myanmar | 2017 | 271 | [42] [43] | |||
| Hungary–Serbia barrier | Hungary | 2015 | 175 | [44] [45] [46] [47] [48] | |||
| Hungary–Croatia barrier | Hungary | 2015 | 41 | ||||
| India–Bangladesh barrier | India | Under construction | 3,268 | ||||
| India–Myanmar barrier | India | Under construction | 1,624 | ||||
| India-Nepal barrier | India | Under construction | ? | ||||
| India–Pakistan barrier | India | 2004 | 550 | [49] | |||
| Iran–Pakistan barrier | Pakistan[50] and Iran | Under construction | 959 | [51] [52] [53] | |||
| Iran–Afghanistan barrier | Iran and Afghanistan | Iran | 1992, 2024(Under construction) | 30 km built in 1992, 300 km planned to be built, 100 km built so far in 2025 | [54] [55] [56] | ||
| Jordan - Syria | Jordan | 2015 | 100 km barriers and deep trenches | [57] [58] [59] | |||
| Israel-West Bank barrier | Israel and Palestine | Israel | Partially Completed | 708 | [60] | ||
| Israel-Egypt barrier | Israel and Egypt | Israel | 2013 | 245 | |||
| Israel-Lebanon barrier | Israel and Lebanon | Israel | 2018 | 11 | |||
| Israel-Gaza barrier | Israel and Gaza Strip | Israel | 1994 | N/A | |||
| Kazakhstan–Uzbekistan barrier | Kazakhstan | 2006 | 45 | [61] | |||
| Kenya - Somalia barrier | Kenya and Somalia | Kenya | 2015 (Under construction) | planned 700 km, done only 10–13 km of fence with barbed wire | [62] [63] [64] | ||
| Korean Demilitarized Zone | 1953 | 248 | |||||
| Kruger National Park | South Africa | 1975 | 120 | 89 (Army), over 200 (Various churches) | |||
| South Africa–Zimbabwe Border | South Africa | 2000s | 225 | [65] [66] [67] [68] | |||
| Kuwait–Iraq barrier | Kuwait | 1991 | 193 | ||||
| Latvia–Russia border fence | Latvia | 2015 | 90 | [69] | |||
| Libya–Tunisia barrier | Tunisia | 2015 | 200 km barrier - moat and sand wall (out of 500 km of border) | [70] [71] | |||
| Lithuania-Belarus barrier | Lithuania | 2021[72] | 502 | [73] [74] | |||
| Lithuania–Russia border fence | Lithuania | 2017 | 130 | [75] | |||
| [76] | |||||||
| Norway–Russia border barrier | Norway | 2016 | 0,2 | [77] | |||
| Oman–Yemen | Oman | 2013 | 288 | [78] [79] | |||
| Pakistan–Afghanistan barrier | Pakistan | 2017 started | 2,670 | [80] [81] [82] | |||
| Poland–Belarus barrier | Poland | 2022[83] | 186 | 21[84] | [85] [86] [87] [88] [89] | ||
| Saudi–Yemen barrier | Saudi Arabia | 2004 | 75 | ||||
| Saudi–Iraq barrier | Saudi Arabia | 2014 | 900 | [90] [91] [92] | |||
| Slovenia–Croatia barrier | Slovenia | 2016 | 220 | [93] [94] [95] | |||
| Serbia–North Macedonia barrier | Serbia | 2020 | 240 | [96] | |||
| Turkey–Syria border barrier | Turkey | 2018 | 764 km finished, planned 911 km, 2 m wide, 3 m high concrete structure | [97] [98] | |||
| Turkey–Iran border barrier | Turkey | Start of construction in 2017 | Planned 295 km, finished as of 2025 170 km | [99] [100] [101] | |||
| Turkmenistan – Uzbekistan barrier | Turkmenistan | 2001 | 1,700 | [102] [103] [104] | |||
| Ukraine Russia/Belorussia barrier | Ukraine | Started 2015 - on halt 2022 with Russian invasion | 2,000 | [105] [106] [107] | |||
| United Arab Emirates–Oman barrier | United Arab Emirates | 2018 | 410 | ||||
| Mexico–United States barrier | United States | Partially Constructed as of 2025, to be completed by 2029.[108] | 1,749 | [109] [110] [111] [112] [113] [114] [115] [116] [117] [118] | |||
| Uzbek–Afghanistan barrier | Uzbekistan | 2001 | 209 | [119] [120] [121] [122] | |||
| Uzbek–Kyrgyzstan barrier | Uzbekistan | 1999 | 870 | [123] | |||
| Hong Kong-China barrier and Forts | Hong Kong and mainland China | United Kingdom and Hong Kong | 1950s, 1962 updated, | 33 km | [124] [125] | ||
| (Gibraltar) United Kingdom-Spain barrier | (Gibraltar) United Kingdom and Spain | United Kingdom and Gibraltar | 1909 | 1.24 | [126] [127] [128] | ||
| Ethiopia–Eritrea barrier | Ethiopia and Eritrea | 1990s–2000s | ? |
The King Alfonso V of Portugal built walls on the outskirts of the city of Asilah, serving as a border between the Kingdom of Portugal and the Marinid dynasty (1471–1472), the Saadi Sultanate (1472–1550), the Wattasid dynasty (1577–1589), in the area of the sea there are still cannons next to a Portuguese square tower. Currently the Wall is in good condition.
Ming dynasty (currently China) built a wall around Macau in 1570.