Uppsala Conflict Data Program

The Uppsala Conflict Data Program (UCDP) is a data collection program on organized violence, based at Uppsala University in Sweden. The UCDP is a leading provider of data on organized violence and armed conflict, and it is the oldest ongoing data collection project for civil war, with a history of almost 40 years. UCDP data are systematically collected and have global coverage, comparability across cases and countries, and long time series. Data are updated annually and are publicly available, free of charge. Furthermore, preliminary data on events of organized violence in Africa is released on a monthly basis.

The UCDP's data is published annually in the Journal of Peace Research. The UCDP also makes its data publicly available through its interactive website, UCDP website.