Original: The Waffen-SS , the combat branch of the SS ( the Nazi Party 's paramilitary organization ) , became the de facto fourth branch of the Wehrmacht , as it expanded from three regiments to 38 divisions by 1945 .
Simplified: In 1940 , the Fallschirmjäger paratroops conquered the Belgian Fort Eben-Emael and took part in the airborne invasion of Norway , but after suffering heavy losses in the Battle of Crete , large scale airdrops were discontinued .