The conflict in Northern Ireland was an example of "complex warfare" with both insurgency and sectarian violence. We present a unified model that helps to identify these two forms of conflict from the spatial distribution of violence. The model predicts that tectonic boundaries between...

Although the provision of security to all their citizens is a state's fundamental duty, over 50 countries experienced armed conflict in 2021. The international development community has identified armed conflict as an impediment to development and provides considerable resources to reduce armed...

This paper analyses future trends for intrastate conflict in Africa up to 2050 using the International Futures (IFs) model. After reviewing the main post-Cold War patterns of conflict and instability on the continent, the paper discusses seven key correlations associated with intrastate conflict...

This paper investigates how violence in self-determination conflicts influences bilateral foreign policy. I argue that a general preference for international stability causes third parties to support self-determination groups when violence reaches high levels, when they gain territorial control,...