The cartoon is depicting a little kid on a small island handing out candy to these "monster-like" creatures surrounding him. This represents the island nation of Great Britain as the kid and Nazi Germany as the monsters. The act of Great Britain giving out "candy" represents Britain agreeing with Germany to claim territories in Europe such as Austria, Memel, Sudetenland, etc. Sudetenland was especially a big sign of appeasement after the Munich Conference which Czechoslovakia did not attend.
