Belgium found itself in a rather precarious spot during World War II. Essentially, it was invaded and occupied by Nazi Germany. This wasn’t a choice Belgium made; it was a strategic move by the Germans to bypass France’s heavily fortified Maginot Line and access the Atlantic coast. The occupation lasted for about four years, bringing significant hardship, resistance, and ultimately, liberation.
It all happened incredibly fast. Germany, having already conquered much of Europe, set its sights on Western Europe in May 1940. Belgium, along with the Netherlands and Luxembourg, declared its neutrality at the start of the war, hoping to avoid being drawn into the conflict. However, this neutrality proved to be no defence against Hitler’s ambitions.
The German Invasion
On May 10, 1940, German forces launched a swift and brutal invasion. The Luftwaffe, the German air force, bombed airfields and key infrastructure. German tanks and infantry poured across the borders. The Belgian army, though brave, was outmatched by the speed and ferocity of the Blitzkrieg, the German tactic of “lightning war” that involved rapid, concentrated attacks by tanks and motorised infantry supported by close air support.
The Eben-Emael Fortress
A key early event was the capture of Fort Eben-Emael. This was considered one of the most formidable fortresses in Europe, designed to defend the Albert Canal. However, the Germans deployed elite paratroopers equipped with new and devastating weapons, including shaped charges and flamethrowers. The fortress fell within hours, a shocking demonstration of German technological and tactical superiority.
The Role of the Ardennes
Instead of attacking directly through the heavily defended Franco-Belgian border, the Germans used the dense, seemingly impassable Ardennes forest as a route for their armoured divisions. This surprised the Allied commanders, who had expected the main German thrust to come through Belgium and the Low Countries. This manoeuvre allowed the German panzer divisions to break through Allied lines and rapidly advance towards the English Channel.
The Dutch and Belgian Armies
The Dutch army surrendered after just five days. The Belgian army fought on for longer, but they were increasingly encircled. The situation became desperate as German forces pushed further into France and threatened to cut off Allied armies.
King Leopold III and the Surrender
The decision to surrender was a deeply divisive one, with profound consequences for Belgium and its monarchy.
The King’s Decision
On May 27, 1940, King Leopold III, commanding the Belgian army, announced Belgium’s unconditional surrender. This decision was made without consulting the Belgian government, which had fled to France. The King argued that continuing the fight would only lead to further destruction and loss of life for his people. He believed that as the commander-in-chief, it was his duty to spare his soldiers and the civilian population from further suffering.
The Government’s Opposition
The Belgian government, led by Prime Minister Hubert Pierlot, vehemently opposed the surrender. They argued that the King’s decision undermined the Allied cause and abandoned Belgium’s allies. The government continued the fight from exile in France and later in London, representing Free Belgium. This created a constitutional crisis and a deep rift within the Belgian nation that would take years to heal.
The King’s Imprisonment
Following the surrender, King Leopold III remained in Belgium under German supervision. He was considered a prisoner of war by the Germans, though he resided in the Royal Palace. His status and actions during the occupation were a constant source of controversy and resentment for many Belgians. He was accused of collaborating with the Germans, though he maintained he was acting to protect his people.
The ‘Royal Question’
After the war, the King’s return to Belgium sparked what became known as the ‘Royal Question’ (la Question Royale). A referendum was held to decide whether Leopold III should be allowed to resume his duties. While he won a narrow majority, the deep divisions remained, and he eventually abdicated in favour of his son, Baudouin.
Life Under Occupation
The German occupation transformed daily life in Belgium. It was a period of scarcity, repression, and a growing underground resistance.
Rationing and Scarcity
Food, fuel, and other essential goods became scarce. The Germans controlled distribution, and rations were often meagre. People had to queue for hours for basic necessities, and the black market thrived as a way to supplement official rations, though this often came with its own risks.
German Control and Repression
The occupying forces imposed strict controls. German military and civilian administrations were established. Censorship was widespread, and public gatherings were banned. Any form of dissent or resistance was met with harsh reprisals. The Gestapo, the Nazi secret police, operated with impunity, arresting, torturing, and executing suspected resistance fighters.
Jewish Persecution
Belgium’s Jewish population, around 60,000 strong at the start of the war, faced systematic persecution. The Nazis implemented anti-Jewish laws, and many Jewish men, women, and children were rounded up and deported to concentration and extermination camps, primarily Auschwitz. The infamous “Vél d’Hiv” sweep in Paris, though not in Belgium, was symbolic of the widespread roundups across occupied Europe. Belgian citizens played a complex role, with some actively participating in hiding Jews, others looking the other way, and a small but tragic number collaborating with the occupiers.
Forced Labour
Belgian workers were conscripted for forced labour in Germany, working in factories and on construction projects vital to the German war effort. This was a deeply resented policy that further fuelled opposition to the occupation.
The Belgian Resistance
Despite the overwhelming power of the occupying forces, a significant and diverse resistance movement emerged in Belgium.
Diverse Resistance Groups
The resistance wasn’t a single, unified entity. It comprised various groups with different ideologies and approaches, from communists and socialists to Catholics and liberal nationalists. Some focused on intelligence gathering and sabotage, while others engaged in propaganda and helped downed Allied airmen.
Intelligence Gathering
One of the most crucial roles of the Belgian resistance was to gather intelligence on German troop movements, fortifications, and war production. This information was passed on to the Allies, often through clandestine radio transmissions or by agents who managed to escape the country. This intelligence played a vital role in Allied planning for campaigns and operations.
Sabotage and Armed Action
Resistance fighters engaged in acts of sabotage against railway lines, bridges, and German military installations. They also carried out armed attacks against German patrols and collaborators. These actions, though often small-scale, served to disrupt the German war effort and boost the morale of the occupied population.
The Comet Line
A particularly notable resistance network was the Comet Line (Ligne Doyenne), which was instrumental in helping downed Allied airmen escape occupied Europe back to Britain. Run by individuals like Andrée de Jongh, this network was responsible for saving hundreds of lives at considerable risk to those involved.
Collaboration and Betrayal
It wasn’t all heroic resistance. A number of Belgians, driven by ideology, opportunism, or fear, collaborated with the German occupiers. These collaborators often worked for the German administration, provided intelligence, or informed on resistance members. This led to tragic betrayals and further complicated the landscape of occupied Belgium.
Liberation and the Aftermath
| Aspect | Details |
|---|---|
| Occupation | Belgium was occupied by Nazi Germany from May 1940 to September 1944. |
| Resistance | Belgian resistance movements engaged in various acts of sabotage and espionage against the German occupiers. |
| Collaboration | Some Belgians collaborated with the German authorities, while others resisted the occupation. |
| Impact | The war had a significant impact on the Belgian population, leading to food shortages, forced labor, and other hardships. |
| Liberation | Belgium was liberated by the Allied forces in September 1944. |
The Allied liberation of Belgium was a gradual but ultimately decisive process.
The D-Day Landings and the Advance
Following the D-Day landings in Normandy on June 6, 1944, Allied forces began their advance across Western Europe. The liberation of Belgium was a key objective. British, Canadian, and American troops, alongside Belgian resistance fighters, pushed eastward.
Brussels and Antwerp Liberated
Brussels was liberated on September 3, 1944, by British and Canadian forces. This was a moment of immense joy and relief for the Belgian population. Shortly after, the vital port of Antwerp was also captured, though its full operational capacity took time to restore due to German sabotage. The capture of Antwerp was crucial for Allied logistics, allowing them to resupply their armies more effectively.
The Battle of the Bulge
Despite the liberation of much of the country, the Germans launched a final, desperate offensive in December 1944, known as the Battle of the Bulge. This surprise attack aimed to split the Allied lines and recapture Antwerp. The fighting was particularly fierce in the Ardennes region, an area that had seen intense fighting at the start of the war. Belgian civilians suffered greatly during this period as they were caught in the crossfire.
The End of the War
By early 1945, the Allied forces had pushed back the German offensive and continued their advance into Germany. Belgium was finally free from German occupation. The country, however, bore the scars of war, with extensive damage, loss of life, and profound social and political divisions. The post-war period was dedicated to rebuilding and reconciliation.
FAQs
1. What was Belgium’s role during World War II?
Belgium was invaded by Nazi Germany in May 1940 and remained under German occupation until September 1944. During this time, the country’s government and military were largely ineffective in resisting the German forces.
2. How did the occupation impact Belgium’s population?
The German occupation had a significant impact on Belgium’s population. Many people were forced into labor camps, and there were widespread food shortages. Additionally, the Jewish population of Belgium suffered greatly, with many being deported to concentration camps.
3. Did Belgium have a resistance movement during World War II?
Yes, Belgium had a resistance movement during World War II. The movement was made up of various groups and individuals who engaged in acts of sabotage, espionage, and helping Allied soldiers and airmen evade capture.
4. What was the Battle of Belgium?
The Battle of Belgium refers to the German invasion of Belgium in May 1940, which was part of the larger Battle of France. Despite putting up a valiant effort, the Belgian military was ultimately unable to withstand the German forces, leading to the country’s occupation.
5. How did Belgium recover after World War II?
After World War II, Belgium faced the task of rebuilding its infrastructure and economy. The country also had to come to terms with the impact of the war on its population, including the loss of life and the suffering endured during the occupation.


