Despite this policy, Belgium was invaded without warning by German forces on 10 May 1940. After 18 days of fighting, the Belgian military surrendered on 28 May and the country was placed under the control of a German military government. Between 600,000 and 650,000 Belgian men (nearly 20% of the country's male population) had been mobilized to fight.
Graph IRI | Count |
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http://dbkwik.webdatacommons.org | 28 |