Complex sentence: The Edelweiss Pirates ("Edelweißpiraten") were members of a loosely organized youth culture in Nazi Germany that emerged in western Germany in the late 1930s in response to the strict regimentation of the Hitler Youth.
Split into simpler sentences: The Edelweiss Pirates ("Edelweißpiraten") were a loose group of youth culture in Nazi Germany. They emerged in western Germany out of the German Youth Movement of the late 1930s in response to the strict regimentation of the Hitler Youth.