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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Onset of Intrastate Armed Conflict, 1946-2009
Content: Onset of Intrastate Armed Conflict, 1946- 2009. This file contains a country-year version of the UCDP/PRIO Armed Conflict Dataset v.4-2010 structured for quantitative analysis.
Please cite: Harbom, Lotta & Peter Wallensteen, 2010. ”Armed Conflict, 1946-2009.” Journal of Peace Research 47(4), as well as the original citation for the data: Gleditsch, Nils Petter, Peter Wallensteen, Mikael Eriksson, Margareta Sollenberg, and Håvard Strand. 2002. "Armed Conflict 1946-2001: A New Dataset." Journal of Peace Research 39(5).
Latest update: 18 November 2010
Older versions
Onset of Intrastate Armed Conflict, 1946-2008
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Latest News
New 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!)
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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.
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