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.^[1] 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.^[1] 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.^[2] The UCDP also makes its data publicly available through its interactive website, UCDP website.