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| Military operations involving Belgium | |
|---|---|
| Country | Belgium |
| Period | 1830–present |
| Branches | Belgian Armed Forces, Belgian Army, Belgian Air Component, Belgian Navy (historical), Belgian Gendarmerie |
| Notable operations | Battle of the Yser, Battle of Belgium (1940), NATO intervention in Libya, Operation Red Kite (Belgium), United Nations Operation in Somalia II, ISAF |
Military operations involving Belgium
Belgium has participated in a wide spectrum of operations from 19th‑century colonial campaigns and the Franco‑Prussian War era diplomacy to major 20th‑century conflicts such as Battle of the Yser, the Battle of Belgium (1940), and extensive multinational missions under NATO, the United Nations, and the European Union. Belgian forces have deployed in Africa, the Balkans, the Middle East, and Afghanistan, engaging in combat, peacekeeping, humanitarian assistance, and counterinsurgency alongside partners such as the United Kingdom, the France, the United States, the Netherlands, and the Germany. Belgium’s military roles have been shaped by treaties and institutions including the Treaty of London (1839), the North Atlantic Treaty, and successive Belgian defence laws, while political figures from Leopold II of Belgium to postwar premiers influenced operational priorities.
Belgium’s operational history begins with independence arrangements following the Belgian Revolution (1830) and the Treaty of London (1839), which framed Belgian neutrality and later influenced participation in the First World War and the Second World War. The creation of the Belgian Army and development of the Fortress of Antwerp reflected 19th‑century European balance‑of‑power dynamics among the United Kingdom of Great Britain and Ireland, the French Second Empire, and the Kingdom of Prussia. During the 20th century, Belgian operations were driven by alliances such as the Belgian–Luxembourg Economic Union ties, membership in NATO, and obligations under the United Nations Charter, leading to deployments for United Nations Operation in the Congo (ONUC), UNPROFOR, and ISAF.
Belgium’s colonial operations centered on the Congo Free State under Leopold II of Belgium and later the Belgian Congo, including military expeditions against Kongo Kingdom successors and campaigns to suppress uprisings during the Congo Arab War and the Force Publique’s actions. Belgian troops also engaged diplomatically and militarily in the International African Association era, interacting with figures such as Henry Morton Stanley and states including the Sultanate of Zanzibar. In Europe, Belgian units were involved in border incidents and garrison duties during tensions with the Kingdom of the Netherlands and the German Empire prior to the First World War.
In World War I, Belgian formations fought in the Battle of Liège, the Siege of Namur, and the Battle of the Yser, resisting the German Empire’s Schlieffen Plan and cooperating with the British Expeditionary Force and the French Army. Belgian colonial troops from the Force Publique fought in the East African Campaign against forces of the German Empire. In World War II, Belgium underwent the Battle of Belgium (1940), capitulation to the Wehrmacht, and subsequent liberation operations involving the Free Belgian Forces, the Allied invasion of Normandy, and participation in the Battle of the Scheldt alongside the Royal Canadian Navy and Royal Navy. Belgian airmen served in the Royal Air Force squadrons and in the Western Front (1944–45) campaigns.
During the Cold War, Belgium integrated forces into the NATO command structure with units in the Allied Forces Northern Europe and contributions to the Northern Army Group. Belgian contingents served in Western European defense roles alongside the Bundeswehr, the British Army of the Rhine, and the Royal Netherlands Army, and hosted NATO facilities such as SHAPE and air bases used by the Belgian Air Component. Belgium also undertook out‑of‑area rotations, naval deployments with the Standing NATO Maritime Group and nuclear sharing arrangements in coordination with the United States and France under NATO policy.
After the Cold War, Belgium contributed to UNPROFOR in the Bosnia and Herzegovina theatre, the KFOR mission in Kosovo, Operation Allied Force, and the NATO intervention in Libya (2011) with the Operation Unified Protector coalition. Belgian forces participated in African operations including United Nations Operation in the Congo (ONUC), United Nations Operation in Somalia II and later stabilization efforts in DR Congo and Mali under EUFOR and Operation Barkhane coordination, deploying troops, logistical units, and medical teams. Belgium also sent contingents to the International Security Assistance Force (ISAF) in Afghanistan and partnered in coalition activities with the United States and United Kingdom.
Belgian security operations against transnational terrorism intensified after attacks linked to Islamic State of Iraq and the Levant and Al-Qaeda affiliates, prompting deployments of the Belgian Air Component for Operation Desert Hawk style missions and domestic security operations such as heightened police‑military cooperation after the 2016 Brussels bombings. The Gendarmerie reforms and the creation of units like the Special Forces Group and the Bijzondere Eenheden supported counterterrorism efforts, while the Civil Protection Directorate-General and national crisis laws framed responses to disasters, border security, and critical infrastructure protection.
Belgian operations rely on the Belgian Armed Forces integrated command under the Minister of Defence (Belgium) and the Chief of Defence (Belgium), with logistic support from entities like Defence Materiel and Transport Agency and multinational frameworks including NATO Allied Command Operations and EU military staff. Legal bases for deployment derive from Belgian legislation on the use of force, parliamentary approvals, and obligations under treaties such as the North Atlantic Treaty and United Nations mandates; operational planning incorporates rules of engagement influenced by instruments like the Geneva Conventions and cooperation with partners including the United States European Command and French Armed Forces.