E pluribus unum, ex uno plures: Competition, violence, and fragmentation in ethnopolitical movements

The research examines why some ethnopolitical movements are fragmented while others are unified, using a dataset of self-determination movements and a case study of Punjab, India. The authors find that competitive dynamics—specifically state repression, the accommodation of demands, the onset of civil war, and diversifying political demands—significantly increase movement fragmentation. While transnational factors like foreign fighters and mediation also contribute to division during wartime, structural factors such as linguistic sub-cleavages and geographic dispersion showed no significant correlation. The Punjab case study illustrates how events like Operation Bluestar and the failed Rajiv-Longowal Accord triggered proliferation of militant and political organizations.

• Competitive dynamics between the state and ethnopolitical movements, and among factions within those movements, are the strongest drivers of fragmentation.
• State repression and the onset of civil war are positively associated with an increase in the number of organizations within a movement.
• State accommodation of movement demands can paradoxically foster fragmentation by surfacing latent divisions or creating disputes over the adequacy of concessions.
• An increase in the diversity of political demands within a movement increases the probability of fragmentation.
• During wartime, the presence of foreign fighters and the use of mediation are associated with higher levels of movement fragmentation.
• Structural factors, including linguistic sub-cleavages and geographic dispersion, did not show a statistically significant correlation with movement fragmentation in the large-n analysis.
• Higher state capacity (measured by GDP per capita) was unexpectedly associated with a higher degree of group fragmentation.
• In the case of Punjab, India, the 1984 attack on the Golden Temple (Operation Bluestar) and the subsequent failure of the Rajiv-Longowal Accord acted as catalysts for the proliferation of militant and political organizations.
• The Punjab case suggests that internal social institutions that encourage in-group competition, such as the Shiromani Gurudwara Prabandhak Committee (SGPC), can foster fragmentation.

APA

Seymour, L. J., Bakke, K. M., & Cunningham, K. G. (n.d.). E pluribus unum, ex uno plures: Competition, violence, and fragmentation in ethnopolitical movements. Peace Research Institute Oslo. https://cdn.cloud.prio.org/files/7c3f2a39-7869-4804-9c61-b40b6f981e65/E pluribus unum ex uno plures Competition violence and fragmentation in ethnopolitical movements.pdf?inline=true

Chicago

Seymour, Lee J.M., Kristin M. Bakke, and Kathleen Gallagher Cunningham. E pluribus unum, ex uno plures: Competition, violence, and fragmentation in ethnopolitical movements. Peace Research Institute Oslo, n.d. https://cdn.cloud.prio.org/files/7c3f2a39-7869-4804-9c61-b40b6f981e65/E pluribus unum ex uno plures Competition violence and fragmentation in ethnopolitical movements.pdf?inline=true.

Wikipedia

{{cite report |last1=Seymour |first1=Lee J.M. |last2=Bakke |first2=Kristin M. |last3=Cunningham |first3=Kathleen Gallagher |title=E pluribus unum, ex uno plures: Competition, violence, and fragmentation in ethnopolitical movements |publisher=Peace Research Institute Oslo |url=https://cdn.cloud.prio.org/files/7c3f2a39-7869-4804-9c61-b40b6f981e65/E pluribus unum ex uno plures Competition violence and fragmentation in ethnopolitical movements.pdf?inline=true |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{seymourndpluribus, author = {Seymour, Lee J.M. and Bakke, Kristin M. and Cunningham, Kathleen Gallagher}, title = {{E pluribus unum, ex uno plures: Competition, violence, and fragmentation in ethnopolitical movements}}, institution = {Peace Research Institute Oslo}, url = {https://cdn.cloud.prio.org/files/7c3f2a39-7869-4804-9c61-b40b6f981e65/E pluribus unum ex uno plures Competition violence and fragmentation in ethnopolitical movements.pdf?inline=true}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }