Answer
Degrelle served in the German Army during World War II, specifically the Waffen-SS, a branch of the Schutzstaffel (SS) that was responsible for numerous war crimes and atrocities. He rose to the rank of SS-Sturmbannführer (Major) and commanded the 27th SS-Freiwilligen-Grenadier-Division Langemarck, a unit composed primarily of Belgian volunteers and Flemish Waffen-SS members.