About UCDP

The Uppsala Conflict Data Program (UCDP) has recorded ongoing violent conflicts since the 1970s. The data provided is one of the most accurate and well-used data-sources on global armed conflicts and its definition of armed conflict is becoming a standard in how conflicts are systematically defined and studied.

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Archive

UCDP Database backdated to 1975

The backdating project of the UCDP Database was completed on 30 April 2010. This update, which has been ongoing since September 2009, has backdated the ‘state-based armed conflict’ category back to 1975, making these available in the UCDP’s online database on organised violence.

Any armed conflicts active since 1975 or later are now available for study, complete with descriptive information on the conflicts’ backgrounds, dynamics and resolutions. Users can also search the database and specific conflicts for information on third party interventions, negotiations and peace agreements.


UCDP Database updated for 2009

The update of the state-based armed conflicts category for 2009 in the UCDP Database has now been completed. Updates regarding the conflicts, battle-related deaths, third party activities, negotiations and peace agreements are now available for perusal, complete with variable-level search possibilities.


UCDP/PRIO Conflict Onset Dataset

This dataset, designed for immediate use in quantitative studies, is a country-year dataset on all incidences of onset of armed conflict from 1946-2008. It informs the user of whether or not a given country year has an onset of armed conflict. The onset variables are based on the Gleditsch et al. (2002) dataset. Download the data.


UCDP at ISA in New Orleans

The UCDP visited the International Studies Association conference in New Orleans, USA, in February. At the conference several papers using new and upcoming UCDP data were presented. The program also displayed its database and the first beta version of the UCDP GED.


States in Armed Conflict 2008 launched

On Friday 27th of November 2009 the Uppsala Conflict Data Program (UCDP) launched the latest publication in its annual States in Armed Conflict series. States in Armed Conflict 2008 maps and analyses the number of armed conflicts, non-state conflicts and incidents of one-sided violence around the globe in 2008. In addition to the UCDP’s contributions to the Journal of Peace Research and the SIPRI Yearbook this year’s edition also contains a special feature on one-sided violence; Revisiting One-sided Violence – A Global and Regional Analysis. This paper, which is available as a PDF-file, analyses the global incidence of one-sided violence since 1989, compares regional disparities, and uses statistics to show what countries are specifically at risk of experiencing one-sided violence. Download the PDF file.

The full report can be ordered by contacting the Department of Peace and Conflict Research. For more detailed information on the specific cases of organized violence in 2008, visit the UCDP Database.
 

UCDP Conflict Counter 2010Click image for the UCDP Conflict Encyclopedia (UCDP database)

Discover the UCDP GED

Click image for the UCDP Georeferenced Event Data

Latest News

New UCDP GED YouTube-video!

Click image for UCDP GED youtube video

A short video of organized violence in 1989-2010, over time and space. A derivative of the UCDP Georeferenced Event Dataset (out now!)

Watch the video on YouTube.

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Major UCDP data release 

On 8 December, 2011, the UCDP released its latest addition to its vast number of datasets; the UCDP GED version 1.0-2011. The UCDP GED is an event-based and georeferenced dataset on organized violence, detailing all of the UCDP’s categories of violence (state-based conflict, non-state conflict and one-sided violence) in Africa between 1989 and 2010 at the level of the individual event of violence. 

Also on 8 December, 2011, the UCDP released new data on external support in internal armed conflicts for the time period 1975-2009.

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The Arab Spring in the UCDP Conflict Encyclopedia

The events of the Arab Spring will shortly be added in the UCDP Conflict Encyclopedia. Click on the links below for a background note on the Arab Spring and a timeline including events until late December 2011.

Background Arab Spring

Timeline Arab Spring

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