Complex sentence: The All-Russian Fascist Organization, founded in 1933, largely consisted of émigrés of the White Movement, and was led by Anastasy Vonsyatsky based in Connecticut, USA.
Split into simpler sentences: The All-Russian Fascist Organization, founded in 1933, largely consisted of émigrés of the White Movement. It was led by Anastasy Vonsyatsky and was based in Connecticut, USA.