Armed Conflict Location and Event Data Project


The Armed Conflict Location & Event Data Project is a non-governmental organization specializing in disaggregated conflict data collection, analysis, and crisis mapping. ACLED codes the dates and locations of all reported political violence and demonstration events in over 150 countries in real-time. As of 2020, ACLED has recorded almost a million individual events across Africa, the Middle East, Latin America & the Caribbean, East Asia, South Asia, Southeast Asia, Central Asia & the Caucasus, and Southeastern & Eastern Europe & the Balkans. The ACLED team conducts analysis to describe, explore, and test conflict scenarios, making both data and analysis open for use by the public.

Team and History

ACLED is led by founder and Executive Director Prof. Clionadh Raleigh, a Professor of Political Violence and Geography at the University of Sussex, and operated by Research Director Dr. Roudabeh Kishi and Program Director Olivia Russell.
The dataset was introduced by Raleigh and co-authors in a 2010 paper in the Journal of Peace Research. ACLED was previously affiliated with the University of Sussex and hosted by the Peace Research Institute Oslo but later moved to an independent home. Since 2014, ACLED has been registered as an independent, non-profit organization with 501 status in the United States.

Data

ACLED data contain information on the specific dates and locations of conflict events, the types of events, the groups involved, reported fatalities, and changes in territorial control. The dataset has different coverage periods for different regions and countries, as back-coding remains ongoing: all African countries are covered starting from 1997 to the present; Middle Eastern countries are covered from 2016 to the present, with the exception of Yemen, Saudi Arabia, and Syria ; South and Southeast Asian countries are covered from 2010 to the present, with the exception of India, Indonesia, the Philippines, and Malaysia ; all Eastern and Southeastern European and Balkan countries are covered from 2018 to the present; all countries in Central Asia and the Caucasus are covered from 2018 to the present, with the exception of Afghanistan ; all countries in Latin America and the Caribbean are covered from 2019 to the present; and all countries in East Asia are covered from 2019 to the present. All regions are covered in real-time. ACLED has launched a special project covering the United States ahead of the 2020 election and is in the process of expanding coverage to Western Europe.
Data collection involves a variety of sources including reports from government institutions, local media, humanitarian agencies, and research publications. In many cases, ACLED has developed partnerships with local conflict observatories to enhance data collection, such as the and the Syrian Network for Human Rights. A full account of definitions, practices, source materials, and coding procedures are available in the General Guides and Methodology sections of the ACLED website.
Data are updated in real-time and can be downloaded from the website's Data Export Tool, the website's Curated Data Files, or directly from the ACLED API. ACLED provides a codebook intended for all users of the dataset as well as additional FAQs and guides. Real-time analysis of political violence can be also found in the Analysis section of the ACLED website, including weekly regional overviews, briefings, reports, and infographics. The project also issues press releases, fact sheets, and summaries for use by the media, which can be found in the Press section of the website.

Uses and Users of ACLED

ACLED material is regularly used to inform journalism, academic research, and public discourse on conflict, and to support the work of practitioners and policymakers.

Academics, practitioners, and policymakers

Scholars, students, and academic researchers commonly use ACLED data in their work on protest and political violence, including those from institutions like Bowdoin College, Brown University, Columbia University, Cornell University, Kings College London, the London School of Economics, the Massachusetts Institute of Technology, Oxford University, Stanford University, and the University of Pennsylvania, among others.
ACLED data are also routinely used and referenced by development practitioners, humanitarian agencies, and policymakers, including the World Bank, the International Committee of the Red Cross, the Secretary-General of the United Nations, UN OCHA, UNICEF, OHCHR, UN country offices, European Union agencies, and a variety of government ministries around the world, as well as charities and human rights organizations.

Think tanks and blogs

Think tanks such as the Center for Strategic and International Studies, the Carnegie Endowment for International Peace, the Carter Center, the Council on Foreign Relations, the Brookings Institution, and the Africa Center for Strategic Studies regularly utilize ACLED data for research and to inform policy recommendations.
Political scientist, data analyst, and forecaster Jay Ulfelder blogged about his experience trying to use the ACLED to see if it added predictive power in estimating the probability of coups, and explained both how he approached the problem and why he eventually concluded that the ACLED data did not add predictive power for coup forecasting. However, 23 successful and unsuccessful changes in power through coups have occurred across Africa since 1997. Recent research suggests that coup risk is related to the size and stability of a leader's cabinet, and not episodes of political violence preceding coups. A post by Thomas Zeitzoff at the Political Violence at a Glance blog listed the ACLED as one of several "high-profile datasets." Patrick Meier blogged about it at irevolution.net.

News media

ACLED data and analysis are regularly cited in media reports on conflict trends. These include pieces in The New York Times, The Guardian, The Washington Post, CNN, The Telegraph, The Independent, Buzzfeed News, Al Jazeera, Middle East Eye, the Associated Press, Le Monde, the BBC National Geographic, The Economist, and The Atlantic, among others. In 2019, The Mail & Guardian listed ACLED as "the most comprehensive database of conflict incidents around the world."

See Also