Belgian Army WW2

 From the wiki Belgium in World War 2.

Despite being neutral at the start of World War II, Belgium and its colonial possessions found themselves at war after the country was invaded by German forces on 10 May 1940. After 18 days of fighting in which Belgian forces were pushed back into a small pocket in the north-west of the country, the Belgian military surrendered to the Germans, beginning an occupation that would endure until 1944. The surrender of 28 May was ordered by King Leopold III without the consultation of his government and sparked a political crisis after the war. Despite the capitulation, many Belgians managed to escape to the United Kingdom where they formed a government and army-in-exile on the Allied side.

With the German invasion of Poland in September 1939, although still following a policy of neutrality, the Belgian government began general mobilization.^[13] By 1940, the army numbered between 600,000^[14] and 650,000^[15] men (nearly 20 percent of the male population of Belgium) making it approximately four times larger than the British Expeditionary Force and twice as large as the Dutch army at the time.^[16]