The government is appealing to citizens' sense of patriotism and duty by emphasizing the importance of keeping information confidential during a time of war. By using the word "QUIET!" in capital letters, they are emphasizing the urgency and seriousness of the message. The phrase "LOOSE TALK CAN COST LIVES" serves as a reminder that sharing sensitive information can have dire consequences for the safety of soldiers and the success of military operations. Overall, the poster is attempting to instill a sense of responsibility and solidarity among citizens in order to gain their cooperation and support for the war effort.
