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.

Current UCDP Projects

Conflict Data Collection

To develop a general definition of armed conflict and ensure that it is systematically applied to all relevant situations in the world. This definition is basic to the entire conflict data project. Data are published annually and covers the period after 1946.
Contact: Lotta Themnér (formerly Harbom)

Project page


UCDP Conflict Encyclopedia (UCDP database)

The UCDP Conflict Encyclopedia (UCDP database) is an online database accessed for free. The database provides detailed information on armed organised violence and peace-making efforts.
Contact: Stina Högbladh

Project page


UCDP Third Party Peacemaking Project

The project focuses on the systematic study of third party conflict prevention and peacemaking efforts.
Contact: Erik Melander

Project page


Human Security Project

UCDP will be providing data on a key indicator of human security - the presence of collective violence - through the expansion of its conflict data collection to include non-state conflict as well as one-sided violence by states or organised groups against civilians (such as massacres and genocide).
Contact: Therese Pettersson

Project page


UCDP Peace Agreements Project

The project collects data on the content and implementation of all peace agreements concluded in an armed conflict.
Contact: Stina Högbladh

Project page


UCDP Peacemakers at Risk Project

The project seeks to systematically examine the occurrence of violence facing third party actors, such as peacekeepers and humanitarian aid workers, intervening in the context of conflict.
Contact: Sara Lindberg

Project page


UCDP Georeferencing and Event Dataset (UCDP GED) Project

The development of the UCDP GED is the next step in conflict data collection. The aim of the project is to provide the international community of scholars with data on organised violence that is disaggregated both spatially and temporally, so as to create opportunities for more fine-grained analyses of the causes, dynamics, and settlements of violent conflicts.
Contact: Mihai Croicu

Project page