Silence

Depicts British First World War poster featuring Britannia with her right index finger to her lips in a gesture of silence. Extended text reads: "Do not talk. When you know that your unit is making preparations for an attack, don't talk about them to men in other units or to strangers and keep your mouth shut, especially in public places. Do not be inquisitive about what other units are doing; if you hear or see anything, keep it to yourself. If you hear anyone else talking about operations, stop him at once. The success of the operations and the lives of your comrades depend upon your silence."