Gang Violence in Colombia, Mexico and El Salvador

Gang violence in Reynosa, Mexico Gang violence in Reynosa, Mexico

12 December 2017

Our new publication Gang Violence in Colombia, Mexico and El Salvador analyses three case studies of countries – Colombia, Mexico and El Salvador – that have stood out for their elevated rate of violence, violent homicides and criminal activities linked to confrontations between state forces and armed gangs or between armed gangs themselves.

‘These countries are severely scourged by the expansion of the phenomena of urban gangs, gang violence and organized crime’ underlines Dr Annyssa Bellal, Strategic Adviser on International Humanitarian Law at the Geneva Academy. ‘Violence is unprecedented not only in terms of number of casualties, but also in the form it takes. In such settings, the civilian population has been and still is subject to extortion, confinement, forced displacement, gender-based violence and recruitment of minors’ she adds.

For each country, the authors – Ana Balcazar Moreno, Ximena Mercedes Galvez Lima, Julie Lambin and Lina Rodriguez – provide an overview of the violence in the country and impact on the civilian population; an overview of the main gangs involved in the violence, their tactics, structure and levels of organization; and an analysis of the states’ responses.

‘What is really striking is that the number of civilian casualties linked to gangs’ violence and states’ responses to this violence might exceed those of major current armed conflicts’ stresses Annyssa Bellal. ‘While this article does not discuss the qualification of these violent situations under international law, it highlights the heavy weaponry used by armed gangs, the fact that some of them control sizeable territory and have the ability to conduct military operations, as well as the frequent involvement of the military in the repression’ she adds.

This publication will form part, along with other analysis of conflict situations, of the War Report 2017 which will be published at the beginning of 2018.

Gang Violence in Colombia Mexico and El Salvador

MORE ON THIS THEMATIC AREA

2024 Geneva Academy Annual Report News

Our 2024 Annual Report

28 July 2025

Our 2024 Annual Report highlights significant achievements in international humanitarian law education and research during a year marked by deepening global humanitarian crises.

Read more

IHL in Focus Spot Report News

Water Wars: How Sudan’s Conflict Weaponizes a Basic Human Need

4 August 2025

Our latest spot report explores how the targeting of water infrastructure is contributing to what is now considered the world’s largest humanitarian crisis, affecting 30 million people.

Read more

Sign: National Human Rights Commission of Nepal Project

Local Implementation of Global Human Rights

Started in May 2020

The Geneva Human Rights Platform collaborates with a series of actors to reflect on the implementation of international human rights norms at the local level and propose solutions to improve uptake of recommendations and decisions taken by Geneva-based human rights bodies at the local level.

Read more

A destroyed camp for internally displaced persons (IDPs) in Khor Abeche, South Darfur, Project

Understanding the Relationship between Conflict, Security and the Human Right to a Clean, Healthy and Sustainable Environment

Started in May 2023

This project will develop guidance to inform security, human rights and environmental debates on the linkages between environmental rights and conflict, and how their better management can serve as a tool in conflict prevention, resilience and early warning.

Read more

Cover of the 2023 Geneva Academy Annual Report Publication

Annual Report 2024

published on July 2025

Read more