Uppsala University

UCDP Dataset Download Center: Replication Datasets

This page provides access to the datasets underlying UCDP-authored articles published in peer-reviewed journals. Each entry includes the data as it appeared at the time of publication, along with replication files and supplementary materials like web appendixes and dataset notes where available.

These datasets are intended to support transparency and reproducibility in conflict research. Authors may also host the data on their own websites; for questions about the content of a specific dataset, please contact the authors directly. For problems accessing or downloading files, contact us at ucdp@pcr.uu.se.

2025

Davies, S., Pettersson, T., Sollenberg, M., & Öberg, M. (2025). Organized violence 1989–2024, and the challenges of identifying civilian victims. Journal of Peace Research, 62(4).

UCDP/PRIO Armed Conflict Dataset v. 25.1, 1946 – 2024 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 25.1 Version History v. 25.1

UCDP Dyadic Dataset v. 25.1, 1946 - 2024 Codebook for the UCDP Dyadic Dataset v. 25.1 Version History v. 25.1

UCDP Battle-Related Deaths Dataset v. 25.1 Codebook for the UCDP Battle-Related Deaths Dataset v. 25.1 Version History v. 25.1

UCDP Non-state Conflict Dataset v. 25.1 Codebook for the UCDP Non-state Conflict Dataset v. 25.1 Version History v. 25.1

UCDP One-sided Violence Dataset v. 25.1 Codebook for the UCDP One-sided Violence Dataset v. 25.1 Version History v. 25.1

UCDP Georeferenced Event Dataset v. 25.1 Codebook for the UCDP Georeferenced Event Dataset v. 25.1

2024

Davies, Shawn, Garoun Engström, Therese Pettersson & Magnus Öberg (2024). Organized violence 1989-2023, and the prevalence of organized crime groups. Journal of Peace Research 61(4)

Online Appendix

UCDP/PRIO Armed Conflict Dataset v. 24.1, 1946 – 2023 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 24.1 Version History v. 24.1

UCDP Dyadic Dataset v. 24.1, 1946 - 2023 Codebook for the UCDP Dyadic Dataset v. 24.1 Version History v. 24.1

UCDP Battle-Related Deaths Dataset v. 24.1 Codebook for the UCDP Battle-Related Deaths Dataset v. 24.1 Version History v. 24.1

UCDP Non-state Conflict Dataset v. 24.1 Codebook for the UCDP Non-state Conflict Dataset v. 24.1 Version History v. 24.1

UCDP One-sided Violence Dataset v. 22.1 Codebook for the UCDP One-sided Violence Dataset v. 24.1 Version History v. 24.1

UCDP Georeferenced Event Dataset v. 24.1 UCDP Georeferenced Event Dataset v. 24.1 with Organized Crime Group Variables Codebook for the UCDP Georeferenced Event Dataset v. 24.1

2023

Davies, Shawn, Therese Pettersson & Magnus Öberg (2023). Organized violence 1989-2022 and the return of conflicts between states?. Journal of Peace Research, 60(4), 691-708.

UCDP/PRIO Armed Conflict Dataset v. 23.1, 1946 – 2022 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 23.1 Version History v. 23.1

UCDP Dyadic Dataset v. 23.1, 1946 - 2022 Codebook for the UCDP Dyadic Dataset v. 23.1 Version History v. 23.1

UCDP Battle-Related Deaths Dataset v. 23.1 Codebook for the UCDP Battle-Related Deaths Dataset v. 23.1 Version History v. 23.1

UCDP Non-state Conflict Dataset v. 23.1 Codebook for the UCDP Non-state Conflict Dataset v. 23.1 Version History v. 23.1

UCDP One-sided Violence Dataset v. 23.1 Codebook for the UCDP One-sided Violence Dataset v. 23.1 Version History v. 23.1

UCDP Georeferenced Event Dataset v. 23.1 Codebook for the UCDP Georeferenced Event Dataset v. 23.1

2022

Davies, Shawn, Therese Pettersson & Magnus Öberg (2022). Organized violence 1989-2021 and drone warfare. Journal of Peace Research 59(4).

UCDP/PRIO Armed Conflict Dataset v. 22.1, 1946 – 2021 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 22.1 Version History v. 22.1

UCDP Dyadic Dataset v. 22.1, 1946 - 2021 Codebook for the UCDP Dyadic Dataset v. 22.1 Version History v. 22.1

UCDP Battle-Related Deaths Dataset v. 22.1 Codebook for the UCDP Battle-Related Deaths Dataset v. 22.1 Version History v. 22.1

UCDP Non-state Conflict Dataset v. 22.1 Codebook for the UCDP Non-state Conflict Dataset v. 22.1 Version History v. 22.1

UCDP One-sided Violence Dataset v. 22.1 Codebook for the UCDP One-sided Violence Dataset v. 22.1 Version History v. 22.1

UCDP Georeferenced Event Dataset v. 22.1 Codebook for the UCDP Georeferenced Event Dataset v. 22.1 UCDP Drones in GED, 2001-2021 Codebook for the UCDP Drones in GED

2021

Pettersson, Therese, Shawn Davies, Amber Deniz, Garoun Engström, Nanar Hawach, Stina Högbladh, Margareta Sollenberg & Magnus Öberg (2021) Organized violence, 1989-2020, with a special emphasis on Syria. Journal of Peace Research 58(4).

UCDP/PRIO Armed Conflict Dataset v. 21.1, 1946 – 2020 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 21.1 Version History v. 21.1

UCDP Dyadic Dataset v. 21.1, 1946 - 2020 Codebook for the UCDP Dyadic Dataset v. 21.1 Version History v. 21.1

UCDP Battle-Related Deaths Dataset v. 21.1 Codebook for the UCDP Battle-Related Deaths Dataset v. 21.1 Version History v. 21.1

UCDP Non-state Conflict Dataset v. 21.1 Codebook for the UCDP Non-state Conflict Dataset v. 21.1 Version History v. 21.1

UCDP One-sided Violence Dataset v. 21.1 Codebook for the UCDP One-sided Violence Dataset v. 21.1 Version History v. 21.1

UCDP Georeferenced Event Dataset v. 21.1 Codebook for the UCDP Georeferenced Event Dataset v. 21.1

2020

Pettersson, Therese & Magnus Öberg (2020) Organized violence, 1989-2019. Journal of Peace Research 57(4).

UCDP/PRIO Armed Conflict Dataset v. 20.1, 1946 – 2019 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 20.1 Version History v. 20.1

UCDP Dyadic Dataset v. 20.1, 1946 - 2019 Codebook for the UCDP Dyadic Dataset v. 20.1 Version History v. 20.1

UCDP Battle-Related Deaths Dataset v. 20.1 UCDP Battle-Related Deaths Dataset v. 20.1 (with additional variables for transnational jihadist groups) Codebook for the UCDP Battle-Related Deaths Dataset v. 20.1 Version History v. 20.1

UCDP Non-state Conflict Dataset v. 20.1 UCDP Non-state Conflict Dataset v. 20.1 (with additional variables for transnational jihadist groups) Codebook for the UCDP Non-state Conflict Dataset v. 20.1 Version History v. 20.1

UCDP One-sided Violence Dataset v. 20.1 UCDP One-sided Violence Dataset v. 20.1 (with additional variables for transnational jihadist groups) Codebook for the UCDP One-sided Violence Dataset v. 20.1 Version History v. 20.1

2019

Pettersson, Therese; Stina Högbladh & Magnus Öberg. 2019. Organized violence, 1989-2018 and Peace Agreements. Journal of Peace Research. 56(4).

UCDP/PRIO Armed Conflict Dataset v. 19.1, 1946 – 2018 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 19.1 Version History v. 19.1

UCDP Dyadic Dataset v. 19.1, 1946 - 2018 Codebook for the UCDP Dyadic Dataset v. 19.1 Version History v. 19.1

UCDP Battle-Related Deaths Dataset v. 19.1, 1989-2018 Codebook for the UCDP Battle-Related Deaths Dataset v. 19.1 Version History v. 19.1

UCDP Non-state Conflict Dataset v. 19.1 Codebook for the UCDP Non-state Conflict Dataset v. 19.1 Version History v. 19.1

UCDP One-sided Violence Dataset v. 19.1 Codebook for the UCDP One-sided Violence Dataset v. 19.1 Version History v. 19.1

UCDP Peace Agreement Dataset v. 19.1 Codebook for the UCDP Peace Agreement Dataset v. 19.1

2018

Pettersson, Therése and Kristine Eck (2018) Organized violence, 1989-2017. Journal of Peace Research 55(4).

UCDP/PRIO Armed Conflict Dataset v. 18.1, 1946 – 2017 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 18.1 Version History v. 18.1

UCDP Dyadic Dataset v. 18.1, 1946 - 2017 Codebook for the UCDP Dyadic Dataset v. 18.1 Version History v. 18.1

UCDP Battle-Related Deaths Dataset v. 18.1, 1989-2017 (conflict) UCDP Battle-Related Deaths Dataset v. 18.1, 1989-2017 (dyadic) Codebook for the UCDP Battle-Related Deaths Dataset v. 18.1 Version History v. 18.1

UCDP Non-state Conflict Dataset v. 18.1 Codebook for the UCDP Non-state Conflict Dataset v. 18.1 Version History v. 18.1

UCDP One-sided Violence Dataset v. 18.1 Codebook for the UCDP One-sided Violence Dataset v. 18.1 Version History v. 18.1

2017

Allansson, Marie, Erik Melander, and Lotta Themnér (2017) Organized violence, 1989–2016. Journal of Peace Research 54(4)

UCDP/PRIO Armed Conflict Dataset v. 17.1, 1946 – 2016 Codebook for the UCDP/PRIO Armed Conflict Dataset v. 17.1

UCDP Dyadic Dataset v. 17.1, 1946 - 2016 Codebook for the UCDP Dyadic Dataset v. 17.1

UCDP Battle-Related Deaths Dataset v. 17.1, 1989-2016 (conflict) UCDP Battle-Related Deaths Dataset v. 17.1, 1989-2016 (dyadic) Codebook for the UCDP Battle-Related Deaths Dataset v. 17.1

UCDP Non-state Conflict Dataset v. 17.1, 1989-2016 Codebook for the UCDP Non-state Conflict Dataset v. 17.1

UCDP One-sided Violence Dataset v. 17.1, 1989-2016 Codebook for the UCDP One-sided Violence Dataset v. 17.1

2016

Erik Melander, Therése Pettersson, and Lotta Themnér (2016) Organized violence, 1989–2015. Journal of Peace Research 53(5).

UCDP/PRIO Armed Conflict Dataset v.4-2016, 1946 – 2015 Codebook for the UCDP/PRIO Armed Conflict Dataset v.4-2016 Version History v.4-2016

UCDP Dyadic Dataset v. 1-2016, 1946 - 2015 Codebook for the UCDP Dyadic Dataset v. 1-2016, 1946 - 2015 Version History v. 1-2016

UCDP Battle-Related Deaths Dataset v.5-2016, 1989-2015 (conflict) UCDP Battle-Related Deaths Dataset v.5-2016, 1989-2015 (dyadic) Codebook for the UCDP Battle-Related Deaths Dataset v.5-2016 Version History v.5-2016

UCDP Non-state Conflict Dataset v2.5-2016 Codebook for the UCDP Non-state Conflict Dataset v2.5-2016 Version History v.2.5-2016

UCDP One-sided Violence Dataset v1.4-2016 Codebook for the UCDP One-sided Violence Dataset v.1.4-2016 Version History v.1.4-2016

2015

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

UCDP/PRIO Armed Conflict Dataset v.4-2015, 1946 – 2014 Codebook for the UCDP/PRIO Armed Conflict Dataset v.4-2015 Version History v.4-2015

UCDP Dyadic Dataset v. 1-2015, 1946 - 2014 Codebook for the UCDP Dyadic Dataset v. 1-2015, 1946 - 2014 Version History v. 1-2015

UCDP Battle-Related Deaths Dataset v.5-2015, 1989-2014 (dyadic) UCDP Battle-Related Deaths Dataset v.5-2015, 1989-2014 (conflict) Codebook for the UCDP Battle-Related Deaths Dataset v.5-2015 Version History v.5-2015

2014

Themnér, Lotta & Peter Wallensteen (2014) Armed Conflicts, 1946-2013. Journal of Peace Research 51(4).

UCDP/PRIO Armed Conflict Dataset v.4-2014, 1946 – 2013 Codebook for the UCDP/PRIO Armed Conflict Dataset, Version 4-2014 Version History v.4 2014

UCDP Dyadic Dataset v. 1-2014, 1946-2013 Codebook for the UCDP Dyadic Dataset v. 1-2014 Version History v1-2014

UCDP Battle-Related Deaths Dataset v.5-2014, 1989-2013 (dyadic) UCDP Battle-Related Deaths Dataset v.5-2014, 1989-2013 (conflict) Codebook for the UCDP Battle-related Deaths Dataset v.5-2014 Version History v.5-2014

2013

Themnér, Lotta & Peter Wallensteen (2013) Armed Conflicts, 1946-2012. Journal of Peace Research 50(4).

UCDP/PRIO Armed Conflict Dataset v.4-2013, 1946 – 2012 Codebook for the UCDP/PRIO Armed Conflict Dataset, Version 4-2013 Version History v.4 2013

UCDP Dyadic Dataset v.1-2013, 1946-2012 Codebook for the UCDP Dyadic Dataset v.1-2013 Version History v.1-2013

2012

Themnér, Lotta & Peter Wallensteen (2012) Armed Conflicts, 1946-2011. Journal of Peace Research 49(4).

UCDP/PRIO Armed Conflict Dataset v.4-2012, 1946 – 2011 Codebook for the UCDP/PRIO Armed Conflict Dataset, Version 4-2012 Version History v.4 2012

UCDP Dyadic Dataset v. 1-2012, 1946-2011 Codebook for the UCDP Dyadic Dataset v. 1-2012 Version History v1-2012

2011

Themnér, Lotta & Peter Wallensteen (2011) Armed Conflicts, 1946-2010. Journal of Peace Research 48 (4): 525-536.

UCDP/PRIO Armed Conflict Dataset, Version 4-2011, 1946-2010 Codebook for the UCDP/PRIO Armed Conflict Dataset, Version 4-2011 Version History v4-2011

UCDP Dyadic Dataset v. 1-2011, 1946-2009 Codebook for the UCDP Dyadic Dataset v. 1-2011 Version History v1-2011

2010

Harbom, Lotta & Peter Wallensteen (2010) Armed Conflicts, 1946-2009. Journal of Peace Research 47(4): 501-509.

UCDP/PRIO Armed Conflict Dataset, Version 4-2010, 1946-2009 Codebook for the UCDP/PRIO Armed Conflict Dataset, Version 4-2010 Version History v4_2010

UCDP Dyadic Dataset v.1-2010, 1946-2009 Codebook for the UCDP Dyadic Dataset v.1-2010 Version History v.1-2010

Kreutz, Joakim. 2010. How and When Armed Conflicts End: Introducing the UCDP Conflict Termination Dataset. Journal of Peace Research 47(2): 243-250.

UCDP Conflict Termination Dataset version 1.0 Codebook for the UCDP Conflict Termination Dataset v 1.0 How and When Armed Conflicts End, Appendix Kreutz2010 Replication Data Kreutz2010 Dofile

2009

Harbom, Lotta & Peter Wallensteen (2009) Armed Conflicts, 1946-2008. Journal of Peace Research 46(4):577-587.

UCDP/PRIO Armed Conflict Dataset, Version 4-2009, 1946-2008 Codebook for the UCDP/PRIO Armed Conflict Dataset, Version 4-2009 Version History v4-2009

UCDP Dyadic Dataset v. 1-2009, 1946-2008 Codebook for the UCDP Dyadic Dataset v. 1-2009 Version History v.1-2009

2008

Harbom, Lotta, Erik Melander & Peter Wallensteen (2008) Dyadic Dimensions of Armed Conflict, 1946-2007. Journal of Peace Research 45(5): 697-710.

UCDP/PRIO Armed Conflict Dataset, Version 4-2008 Codebook for the UCDP/PRIO Armed Conflict Dataset, Version 4-2008 Version History v4-2008

UCDP Dyadic Dataset v. 1.0, 1946-2007 Codebook for the UCDP Dyadic Dataset v. 1.0

Online appendix

2007

Eck, Kristine and Lisa Hultman (2007) “One-Sided Violence Against Civilians in War: Insights from New Fatality Data”. Journal of Peace Research, volume 44, No 2, 2007, pp 233-246.

Dataset Do-file Web-appendix

Harbom, Lotta & Peter Wallensteen (2007) Armed Conflict 1989-2006. Journal of Peace Research 44(5): 623-634.

UCDP/PRIO Armed Conflict Dataset, Version 4-2007 Codebook for the UCDP/PRIO Armed Conflict Dataset, Version 4-2007 Version History v4-2007

2006

Harbom, Lotta, Stina Högbladh & Peter Wallensteen (2006) Armed Conflict and Peace Agreements. Journal of Peace Research 43(5): 617-631.

UCDP Peace Agreement Replication Dataset v. 1.0, 1989-2005 Codebook for the UCDP Peace Agreement Replication Dataset v. 1.0

UCDP/PRIO Armed Conflict Dataset Version 4-2006 Codebook for the UCDP/PRIO Armed Conflict Dataset Version 4-2006 Version History v4-2006

2005

Harbom, Lotta & Peter Wallensteen (2005) Armed Conflict and Its International Dimensions, 1946-2004. Journal of Peace Research 42 (5): 623-635.

Armed Conflict Dataset, Version 3-2005 Codebook for the Armed Conflict Dataset, Version 3-2005 Version History and Known Errata

2004

Eriksson, Mikael & Peter Wallensteen (2004) Armed Conflicts, 1989-2003. Journal of Peace Research 41(5).

Armed Conflict Dataset, Version 3.0 Codebook for the Armed Conflict Dataset, Version 3.0

2003

Eriksson, Mikael, Peter Wallensteen & Margareta Sollenberg (2003) Armed Conflicts, 1989-2002. Journal of Peace Research 40(5): 593-607.

Armed Conflict Dataset, Version 2.0 Codebook for the Armed Conflict Dataset, Version 2.0

2002

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): 615-637.

Armed Conflict Dataset, Version 1.1 Codebook for the Armed Conflict Dataset, Version 1.1

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