I think Priestley used the idea of ​​war to convey his message because it was a big deal when the play was written and everyone would have suffered and worried a lot about it. Furthermore, this warning intimidates the Birlings and makes them realize what they have all done. This relates to Priestley's political opinion as it relates to the fact that both the writer and the inspector are both socialists. It promotes the idea of ​​socialism, as a society in which community and responsibility are central. Priestley uses the Inspector as a socialist vehicle to express his ideas and opinions about life and the world around him, therefore wanting everyone to treat others with compassion. Priestley strongly emphasizes the difference between the upper and lower classes throughout the play. He uses the Birling family as the representative of the upper class and Eva Smith as the representative of the lower class. Priestley shows how in 1912, Upper Class