On April 21,1918, Richthofen's squadron of Fokker triplanes pounced upon a pair of Australian artillery spotting aircraft.

The Germans then were attacked by a flight of Sopwith Camels from 209 SQN, Royal Flying Corp, led by Captain Roy Brown (Ontario, Canada).

In the confusion of the dogfight, Richthofen spotted a Camel disengaging due to jammed guns. The Red Baron was careless, while intent on chasing May's plane he did not see Roy Brown diving onto his own tail. With a single burst of fire Brown ended the Red Baron's life.