Conflict and Humanitarian Health

Armed conflict and other humanitarian emergencies damage health directly through injury and indirectly by destroying health systems, disrupting food and water supplies, and forcing displacement. This topic covers the health consequences of conflict and disasters and the organised responses, humanitarian medicine and public-health interventions, that aim to reduce excess mortality and suffering in affected populations.

Definition

Conflict and humanitarian health is the study of the health consequences of armed conflict, disasters, and complex emergencies, and of the public-health and medical responses intended to prevent excess mortality and morbidity among affected and displaced populations.

Scope

The entry addresses direct and indirect health effects of armed conflict and complex emergencies, the shift in humanitarian caseloads toward protracted crises and non-communicable disease, the major causes of excess mortality such as communicable disease, malnutrition, and lack of care, and the standards and coordination frameworks that guide humanitarian health response. It is descriptive of population health and humanitarian practice, not a field operations manual or clinical guide.

Core questions

• What are the direct and indirect pathways by which conflict harms health?
• How are excess mortality and the major causes of death measured in humanitarian crises?
• How should health services be organised and prioritised in conflict and emergency settings?

Key concepts

• Direct versus indirect health effects of conflict
• Complex humanitarian emergency
• Excess mortality
• Health-system disruption
• Protracted crises
• Minimum standards and humanitarian coordination
• Mental health and psychosocial support

Mechanisms

Conflict harms health both directly, through violence and injury, and indirectly, by collapsing health systems, interrupting supply of food, water, sanitation, and routine services, and displacing populations into crowded or unsafe conditions. In many crises the indirect effects, communicable disease, malnutrition, and untreated chronic conditions, cause more deaths than violence itself. Spiegel and colleagues describe how humanitarian caseloads have shifted toward protracted, urban, and non-communicable-disease-heavy crises, changing the frameworks needed to respond.

Clinical relevance

Clinicians and public-health workers operating in or receiving patients from emergency settings benefit from understanding how conflict reshapes disease patterns, interrupts continuity of care, and concentrates trauma and psychosocial need. The material describes population health and humanitarian standards and is not a substitute for context-specific operational protocols or individual clinical judgement.

Epidemiology

Mortality assessment in humanitarian crises typically uses excess mortality relative to baseline rates, and the leading causes of death in many emergencies are communicable diseases, malnutrition, and the loss of access to maternal, newborn, and chronic care rather than direct violence. The burden of mental disorder in conflict-affected populations is substantial, with meta-analytic evidence linking exposure to torture and other traumatic events to elevated rates of post-traumatic stress and depression.

History

Modern humanitarian medicine grew from nineteenth-century roots in the Red Cross movement and twentieth-century refugee relief, professionalising through famine and conflict responses in the late twentieth century. Efforts to standardise practice produced the Sphere minimum standards and, later, inter-agency guidance on mental health and psychosocial support, while analysts increasingly emphasised the indirect, system-mediated toll of conflict on health.

Debates

Adapting humanitarian health to protracted, non-communicable-disease crises

As displacement becomes more protracted and urban and as chronic-disease needs rise, commentators debate how humanitarian health systems, historically oriented to acute communicable-disease emergencies, should be redesigned.

Key figures

• Paul Spiegel
• Francesco Checchi
• Zachary Steel

Seminal works

• spiegel-2010
• steel-2009

Frequently asked questions

Does conflict kill mostly through violence?

Often no; in many crises the indirect effects of conflict, such as collapsed health systems, malnutrition, and outbreaks of communicable disease, cause more deaths than direct violence, which is why excess mortality is measured across all causes.

What are humanitarian minimum standards?

They are agreed benchmarks, such as those in the Sphere Handbook, that define minimum acceptable levels for water, sanitation, food, shelter, and health services in humanitarian response, intended to protect the rights and dignity of affected people.