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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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/PRIO Armed Conflict Dataset

UCDP/PRIO Armed Conflict Dataset v.4-2015, 1946 – 2014

Content: a conflict-year dataset with information on armed conflict where at least one party is the government of a state in the time period 1946-2014. The most recent is version 4-2015.

Latest presentation of data: Pettersson, Therése & Peter Wallensteen (2015) Armed Conflicts, 1946-2014. Journal of Peace Research 52(4). 

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).

Other recent presentations of the data: “Human Security Report 2013” (Human Security Report Project, Simon Fraser University).

Dataset (Excel)

Dataset (CSV)

Dataset (Stata)

Dataset (R)

Codebook

Version History v4_2015

PRIO

Latest update: 22 June 2015


Older versions

UCDP/PRIO Armed Conflict Dataset v.4-2014a, 1946 – 2013

Dataset (Excel)

Dataset (CSV)

Dataset (Stata)

Dataset (R)

Codebook

Version History v4_2014a

UCDP/PRIO Armed Conflict Dataset v.4-2014, 1946 – 2013

Dataset (Excel)

Dataset (CSV)

Dataset (Stata)

Dataset (R)

Codebook

Version History v4_2014

UCDP/PRIO Armed Conflict Dataset v.4-2013, 1946 – 2012

Dataset (Excel)

Datset (CSV)

Codebook

Version History v 4 2013

UCDP/PRIO Armed Conflict Dataset v.4-2012, 1946 – 2011 

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Version History v4_2012 

UCDP/PRIO Armed Conflict Dataset v.4-2011, 1946 – 2010

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Version History v4 2011

UCDP/PRIO Armed Conflict Dataset v.4-2010, 1946 – 2009

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Codebook

Version History v4_2010

UCDP/PRIO Armed Conflict Dataset v.4-2009, 1946 – 2008

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Version History v4_2009 

UCDP/PRIO Armed Conflict dataset v.4-2008, 1946 – 2007

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Codebook

UCDP/PRIO Armed Conflict dataset v.4-2007, 1946 – 2006

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UCDP/PRIO Armed Conflict dataset v.4-2006, 1946 – 2005

Conflict list 1946 – 2005

Dataset

Codebook

UCDP/PRIO Armed Conflict dataset 1946 – 2004

Conflict list 1946 - 2004

Dataset

List

Codebook

Version History and Known Errata

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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