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

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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.

Charts, Graphs and Maps

Table of contents:

The Uppsala Conflict Data Program (UCDP) offers a number of datasets on organised violence and peacemaking, all of which can be downloaded for free through the download section. A number of illustrative charts and graphs are also available for free download and are updated on a yearly basis. Please always include the citation provided below when using the charts and graphs.

All three UCDP categories 1989-2015

Fatalities by type of violence (including Rwanda 1994)

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.

For more information see the UCDP Battle-Related Deaths DatasetUCDP Non-state Conflict DatasetUCDP One-sided Violence Dataset


Fatalities by type of violence (excluding Rwanda 1994)

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742. 

For more information see the UCDP Battle-Related Deaths DatasetUCDP Non-state Conflict DatasetUCDP One-sided Violence Dataset

State-based conflicts 1946-2015

Armed conflicts by region and year   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742. 

For more information see the UCDP/PRIO Armed Conflict Dataset 


Armed conflicts by type of incompatibility   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.     

For more information see the UCDP/PRIO Armed Conflict Dataset


Armed conflicts by conflict type and year   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.    

For more information see the UCDP/PRIO Armed Conflict Dataset


Armed conflicts by intensity and year   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.    

For more information see the UCDP/PRIO Armed Conflict Dataset


Map of the world's conflicts in 2015 

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.   

For more information see the UCDP/PRIO Armed Conflict Dataset


Active dyads and conflicts by year   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.   

For more information see the UCDP/PRIO Armed Conflict Dataset


State-based conflicts 1989-2015

Battle-related deaths by region

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.      

For more information see the UCDP Battle-Related Deaths Dataset


Battle-related deaths by type of conflict

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.      

For more information see the UCDP Battle-Related Deaths Dataset


Battle-related deaths by type of incompatibility 

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.  

For more information see the UCDP Battle-Related Deaths Dataset


Non-state conflicts 1989-2015

Non-state conflicts by year

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742. 

For more information see the UCDP Non-state Conflict Dataset

Non-state conflicts by region   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742. 

For more information see the UCDP Non-state Conflict Dataset


Non-State fatalities by year   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742. 

For more information see the UCDP Non-state Conflict Dataset


One-sided violence 1989-2015

One-sided fatalities by year   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742. 

For more information see the UCDP One-sided Violence Dataset 


One-sided actors by region   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742.  

For more information see the UCDP One-sided Violence Dataset 


One-sided actors by type  

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742. 

For more information see the UCDP One-sided Violence Dataset


One-sided fatalities by type of actor   

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Please cite: Melander, Erik, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989-2015. Journal of Peace Research 53(5):727-742. 

For more information see the UCDP One-sided Violence Dataset

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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