Complex sentence: On this cue, several Cossacks dance across the screen in front of a concerned-looking man, representing the Soviet Union and to imply the answer to the question was communism (conveniently ignoring the fact that the Cossacks were traditionally opponents to the Bolsheviks).
Split into simpler sentences: On this cue, several Cossacks dance across the screen in front of a concerned-looking man. This was to represent the Soviet Union and to imply the answer to the question was communism (conveniently ignoring the fact that the Cossacks were traditionally opponents to the Bolsheviks).