Complex sentence: Erhard Heiden (23 February 1901--c. April 1933) was an early member of the Nazi Party and the third commander of the paramilitary wing of "Schutzstaffel" (SS), the "Sturmabteilung" ("Storm Detachment; SA").
Split into simpler sentences: Erhard Heiden (23 February 1901--c. April 1933) was an early member of the Nazi Party and the third commander of the Schutzstaffel "(" Protection Squadron; SS). He was an early member of the Nazi Party and its paramilitary wing, the "Sturmabteilung" ("Storm Detachment; SA").