 The Belgian Congo remained loyal to the Belgian government in London and contributed significant material and human resources to the Allied cause . Many Belgians were involved in both armed and passive resistance to German forces , although some chose to collaborate with the German forces . Support from right @-@ wing political factions and sections of the Belgian population allowed the German army to recruit two divisions of the Waffen @-@ SS from Belgium and also facilitated the Nazi persecution of Belgian Jews in which nearly 25 @,@ 000 were killed . 
