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.

More about UCDP

Contact UCDP

Lecture on Peace Research by Peter Wallensteen

The Department has recorded a lecture on the origins and developments of peace research globally and at Uppsala University with Professor Peter Wallensteen.

Watch the lecture.

UCDP One-sided Violence Dataset

UCDP One-sided Violence Dataset v 1.4-2015, 1989-2014

Content: an actor-year dataset with information of intentional attacks on civilians by governments and formally organized armed groups. The most recent is version 1.4-2015.

Latest presentation of the data: Sundberg, Ralph 2009. “Revisiting One-sided Violence – A Global and Regional Analysis” in Harbom, Lotta & Ralph Sundberg Eds. States in Armed Conflict 2008. Uppsala: Universitetstryckeriet.

Original citation for the data: Eck, Kristine and Lisa Hultman. 2007. “Violence Against Civilians in War.” Journal of Peace Research 44(2).

Other recent publications of the data: “Human Security Brief 2006” (Human Security Centre, University of British Columbia).

Dataset (Excel)

Dataset (CSV)

Dataset (Stata)

Dataset (R)

Codebook

Version History v1.4-2014

Latest update: 12 October 2015


Older versions

UCDP One-Sided Violence Dataset v1.4-2014, 1989-2013

Dataset (Excel)

Dataset (CSV)

Dataset (Stata)

Dataset (R)

Codebook

Version History v1.4-2014

UCDP One-Sided Violence Dataset v1.4-2013, 1989-2012

Dataset

Codebook

Version History v1.4-2013

UCDP One-sided Violence Dataset v 1.4-2012, 1989-2011

Dataset

Codebook

Version History v1.4-2012

UCDP One-sided Violence Dataset v 1.3-2011, 1989-2010

Dataset

Codebook

Version History v1.3-2011

UCDP One-sided Violence Dataset v 1.3-2010b, 1989-2008

Dataset

Codebook

UCDP One-sided Violence Dataset v 1.3-2010, 1989-2008 

Dataset

Codebook 

UCDP One-sided Violence Dataset v 1.3 1989-2007

Dataset

Codebook 

UCDP One-sided Violence Dataset v 1.3 1989-2006

Dataset

Codebook

UCDP One-Sided Violence Dataset v.1.2 1989 – 2005

Dataset

Codebook

UCDP One-Sided Violence Dataset 2002 – 2003

Dataset

Codebook


Replication Data

Eck, Kristine and Lisa Hultman (2007) “One-Sided Violence Against Civilians in War: Insights from New Fatality Data”

Publication: Journal of Peace Research, volume 44, No 2, 2007, pp 233-246.

Dataset

Do-file

Web-appendix


 

Organized violence 2014

News

“Organized Violence in the World 2015. An Assessment by the Uppsala Conflict Data Program”

In June, UCDP reported that the number of fatalities in armed conflict has increased substantially in recent years, and that 2014 was the most lethal year since the end of the Cold War for this category of violence. New data show that also the other two types of violence analyzed by the UCDP – conflict between non-state actors and violence targeting civilians – increased substantially in 2014.

Read the full report

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