Minefields in Croatia cover 258.00 square kilometres (99.61 square miles) of territory. As of 2020, the minefields (usually known as "mine suspected areas") are located in 45 cities and municipalities within 8 counties. These areas are thought to contain approximately 17,285 land mines, in addition to unexploded ordnance left over from the Croatian War of Independence. Land mines were used extensively during the war by all sides in the conflict; about 1.5 million were deployed. They were intended to strengthen defensive positions lacking sufficient weapons or manpower, but played a limited role in the fighting.

After the war 13,000 square kilometres (5,000 square miles) of territory was initially suspected to contain mines, but this estimate was later reduced to 1,174 square kilometres (453 square miles) after physical inspection. As of 2013 demining programs were coordinated through governmental bodies such as the Croatian Mine Action Centre, which was hiring private demining companies employing 632 deminers. The areas are marked with 11,454 warning signs.

As of 4 April 2013, 509 people had been killed and 1,466 injured by land mines in Croatia since the war; with these figures including 60 deminers and seven Croatian Army engineers killed during demining operations. In the immediate aftermath of the war, there were about 100 civilian mine casualties per year, but this decreased to below ten per year by 2010 through demining, mine-awareness, and education programs. Croatia has spent approximately €450 million on demining since 1998, when the process was taken over by private contractors coordinated by the Croatian Mine Action Centre. The cost to complete the demining is estimated at €500 million or more. Economic loss to Croatia (due to loss of land use within suspected minefields) is estimated at €47.3 million per year.

In 1990, following the electoral defeat of the Communist regime in Croatia by the Croatian Democratic Union (HDZ), ethnic tensions between Croats and Serbs worsened. After the elections, the Yugoslav People's Army (JNA) confiscated Croatia's Territorial Defence weapons to minimize potential resistance. On 17 August, tensions escalated to an open revolt by the Croatian Serbs. The JNA stepped in, preventing Croatian police from intervening. The revolt centred on the predominantly Serb-populated areas of the Dalmatian hinterland around the city of Knin, parts of the Lika, Kordun and Banovina regions and eastern Croatian settlements with a significant Serb population. This incontiguous area was subsequently named the Republic of Serbian Krajina (RSK). The RSK declared its intention to join Serbia, and as a result came to be viewed by the Government of Croatia as a breakaway region. By March 1991, the conflict had escalated into what became known as the Croatian War of Independence. In June, Croatia declared its independence as Yugoslavia disintegrated. By January 1992, the RSK held 17,028 square kilometres (6,575 sq mi) of territory within borders claimed by Croatia. This territory ranged from 2.5 to 63.1 kilometres (1.6 to 39.2 miles) in depth, and had a 923-kilometre (574 mi) front line along Croatian-controlled territory.

Land mines were first used by the JNA in early 1991, before its withdrawal from Croatia, to protect military barracks and other facilities. Even JNA facilities located in urban centers were secured in this way, using mines such as the PROM-1 bounding mine and MRUD directional anti-personnel mine. The Croatian Army (HV) and Croatian police began laying land mines in late 1991, relying heavily on them to stop advances by the JNA and the Army of the RSK (ARSK) until early 1992. These early minefields were laid with little documentation. In 1992 the ARSK increased its use of mines to secure the front line, largely due to its limited number of troops. Consequently, the ARSK constructed static defensive lines (consisting of trenches, bunkers and large numbers of mines designed to protect thinly-manned defences) to delay HV offensives. This approach was necessitated by the limited depth of RSK territory and the lack of reserves available with which to counterattack (or block) breaches of its defensive line, which meant that the ARSK was unable to employ defence in depth tactics. The combination of poor documentation of minefield locations and the lack of markings (or fencing) led to frequent injuries to military personnel caused by mines laid by friendly forces. It is estimated that a total of 1.5 million land mines were laid during the war.

The HV successfully used anti-tank mines as obstacles in combination with infantry anti-tank weapons, destroying or disabling more than 300 JNA tanks (particularly during defensive operations in Slavonia). Conversely, anti-personnel mines deployed by the ARSK proved less effective against the HV during operations Flash and Storm in 1995. During these operations, the HV crossed (or bypassed) many ARSK minefields based on information from land-based and unmanned aerial vehicle reconnaissance of the movement of ARSK patrols, civilian populations, and the activation of mines by wildlife. Out of the 224 HV personnel killed in operations Flash and Storm, only 15 fatalities were caused by land mines. Similarly, out of 966 wounded in the two offensives only 92 were injured by land mines.

As of 4 April 2013 a total of 509 people had been killed and 1,466 injured by land mines in 1,352 incidents in Croatia. There were 557 civilian casualties from land mines between 1991 and 1995, during the war and in its immediate aftermath. Between 1996 and 1998 there were approximately 100 civilian casualties from land mines per year in Croatia, but the number gradually decreased to less than ten per year by 2010. During the war, 57 HV troops were killed or injured by mines in 1992. In 1995, 169 were killed or injured (most during operations Flash and Storm) out of 130,000 HV troops involved. Seven HV engineers were killed and 18 injured by land mines during HV mine clearance operations between 1996 and 1998. Civilian casualties include 60 deminers killed since 1998.

Croatia has established an extensive framework to assist those injured by mines and the families of mine victims. This assistance includes emergency and ongoing medical care, physical rehabilitation, psychological and social support, employment and social-integration assistance, public awareness, and access to public services. Institutions and organizations supporting mine victims include a wide range of governmental bodies and non-governmental organizations (NGOs).

As of February 2024, minefields in Croatia cover 91.2 square kilometres (35.2 square miles) of territory. The minefields (usually known as "mine suspected areas" or MSA) are located in 4 counties and 21 cities and municipalities. These areas are thought to contain approximately c.10,052 land mines, in addition to unexploded ordnance left over from the Croatian War of Independence.

The area suspected of containing land mines is marked using more than 6,255 warning signs. Based on the analysis of the area structure in MSAs, at the end of 2022, after the demining, technical survey and general and supplementary general survey, it was determined that 98.7% of MSAs are forests and forest areas, while 1.2% MSAs of the Republic of Croatia are agricultural land, and 0.1% of MSAs are categorized as "other areas" (water, wetlands, rocks, landslides, rocks, shores, etc.).

Minefields area km (sq mi) size in Croatia

County	1 January 2022	1 January 2023	Demining plan in 2023	Demining plan in 2024	Demining plan in 2025
Bjelovar-Bilogora	Demined in 2005
Brod-Posavina	Demined in 2018
Dubrovnik-Neretva	Demined in 2014
Karlovac	38.1 (14.7)	18.9 (7.3)	−11.5 (−4.4)	−7.0 (−2.7)	To be demined
Lika-Senj	86.7 (33.5)	74.6 (28.8)	−17.4 (−6.7)	−24.4 (−9.4)	−31.3 (−12.1)
Osijek-Baranja	Demined in 2023
Požega-Slavonia	Demined in 2022
Sisak-Moslavina	34.8 (13.4)	25.0 (9.7)	−9.5 (−3.7)	−11.1 (−4.3)	−5.5 (−2.1)
Split-Dalmatia	18.1 (7.0)	16.5 (6.4)	−7.1 (−2.7)	−8.6 (−3.3)	To be demined
Šibenik-Knin	Demined in 2023
Virovitica-Podravina	Demined in 2014
Vukovar-Syrmia	Demined in 2016
Zadar	Demined in 2021
Zagreb	Demined in 2005
Total	239.4 (92.4)	149.7 (57.8)	−60.6 (−23.4)	−51.1 (−19.7)	−36.8 (−14.2)

Land mines are a safety issue for populations living near minefields. In 2008, an estimated 920,000 people in Croatia were endangered by their proximity to mined areas (20.8 percent of the population). Land mines are also a significant problem for development, because a substantial portion of the minefields in Croatia are on agricultural land and in forests. Some drainage channels are consequently inaccessible for maintenance, resulting in intermittent flooding; this is particularly severe in areas bordering Hungary. Similar problems are caused by mines laid on the banks of the Drava, Kupa, and Sava rivers. The presence of land mines adversely affected post-war recovery in rural areas, reducing the amount of available agricultural land, impeding development, and affecting the quality of life for people in mined areas. In addition to agriculture, the most significant economic problem caused by mines in Croatia is their impact on tourism (especially on forested areas and hunting in areas inland from the Adriatic Sea coast). In 2012, it was estimated that the economy of Croatia lost 355 million kuna (c. 47.3 million euros) a year from the effects of mine-suspected areas on the economy.

Because of the importance of tourism to the Croatian economy, areas frequented by tourists (or near major tourist routes) have been given priority for demining. Other safety-related areas receiving demining priority are settlements, commercial and industrial facilities and all documented minefields. Agricultural land, infrastructure, and forests are grouped in three priority categories depending on their economic significance. National parks in Croatia were also demined as top-priority areas, along with areas significant for fire protection. Theft of minefield signs is a significant problem, and is particularly pronounced in areas with concerns among the local population that the signs harm tourism. The signs are regularly replaced, sometimes with concrete or masonry structures to display them instead of metal poles. Since the 1990s, only one tourist has been injured by a land mine in Croatia.

The Government of Croatia established several bodies to address the problem of land mines in Croatia; foremost among them are the Office for Mine Action and the Croatian Mine Action Centre. The Office for Mine Action is a government agency tasked with providing expert analysis and advice on demining. The Croatian Mine Action Centre is a public-sector body tasked with planning and conducting demining surveys, accepting cleared areas, marking mine-suspected areas, quality assurance, demining research and development, and victim assistance. The work of the Croatian Mine Action Centre is supervised by the Office for Mine Action.

As refugees flee to Europe, from Syria and other Middle Eastern nations, some are migrating through Croatia due to Hungary's recent closing of its borders. These immigrants trying to cross to Europe are seeking Croatia's help in finding safe routes of passage.

Croatia has implemented a mine-awareness educational program aimed at reducing the frequency of mine-related accidents through an ongoing information campaign. The program is conducted by the Croatian Red Cross, the Ministry of Science, Education and Sports and several NGOs in cooperation with the Croatian Mine Action Centre. The Croatian Mine Action Centre actively supports NGOs to develop as many programs as possible and attract new NGOs to mine-awareness and educational activities. It maintains an accessible online database with cartographic information on the location of mine-suspected areas in Croatia.

One mine-awareness campaign involving billboard advertising attracted criticism from the Ministry of Tourism and the Croatian National Tourist Board (CNTB) because the signs were placed in tourist areas, far from any mine-suspected areas. The Ministry of Tourism and the CNTB welcomed the effort's humanitarian aspect, but considered the signs a potential source of unwarranted negative reaction from tourists. Tourist guidebooks of Croatia include warnings about the danger posed by mines in the country, and provide general information about their location.

At the end of the Croatian War of Independence, approximately 13,000 square kilometres (5,000 square miles) of the country was suspected of containing land mines. During the war and in its immediate aftermath, demining was performed by HV engineers supported by police and civil defence personnel. Wartime demining was focused on clearance tasks in support of military operations and the safety of the civilian population. In 1996 the Parliament of Croatia enacted the Demining Act, tasking police with its organization and the government-owned AKD Mungos company with the demining itself. By April 1998 approximately 40 square kilometres (15 square miles) had been cleared of mines, and the initial estimate of minefield areas was reduced after inspection. By 2003 the entire territory of Croatia was reviewed, and the minefield area was reduced to 1,174 square kilometres (453 square miles).

Since May 1998 the Croatian Mine Action Centre has been tasked with the development of demining plans, projects, technical inspections, cleared-area handover, demining quality assurance, expert assistance and the coordination of mine-clearance activities. The demining is performed by 35 licensed companies, employing 632 demining professionals and 58 auxiliary personnel. The companies do their work with 681 metal detectors, 55 mine rollers and mine flails, and 15 mine-detection dogs. Mine-clearing machines include locally designed models produced by DOK-ING. Deminers typically earn €.50–1.20 for each 1 square metre (11 square feet) cleared, or €800–900 a month.

Since 1998, demining has been funded through the government and by donations. From 1998 to 2011, donations amounted to €75.5 million (17 percent of the total of €450 million spent on demining during that period). Most donations were from foreign contributors, including NGOs and foreign governments (among them Japan, Germany, Monaco, Luxembourg and the United States). The European Union was also a significant contributor during that period, providing €20.7 million. As of 2013, the Croatian Mine Action Centre has been allocated approximately 400 million kuna (c. 53 million euros) a year for demining. In 2011, an estimated further €500 million (or more) was needed to remove all remaining land mines from Croatia by 2019, the deadline for land-mine clearance set by the Ottawa Treaty. The Croatian Mine Action Centre spends approximately 500,000 kuna (c. 66,600 euros) a year to maintain minefield warning signs (including the replacement of stolen signs).

As of April 2017, approximately 446 km² containing around 43,000 potential landmines was yet to be cleared.

On July 28, 2022, the Croatian government submitted to the Parliament the Proposal for the National Mine Action Program until 2026, which defines the demining strategy for mine-suspected areas and the deadline for completion by county.

Books

News reports

Other sources

• Croatian mine action centre - official website
• MIS Portal – maps of mine suspected areas in Croatia