Watch your words about security measures or the enemy may use them to attack American ships.
Answer: Option B.
<u>Explanation:</u>
In the poster which has been talked about, there is a ship which has been burnt and the sailors are saving their lives by rowing away in a life boat. Trying to save themselves.
The image is trying to say that we have to be very careful about what we speak and what we do. Because this might give a chance to the enemies to take advantage of the situation if they get to know our safety measures and they might try to harm us. So we have to be very careful of what we plan and how we plan and make sure that our enemies do not get any idea of what we plan.
The First World War was a cataclysm that disrupted countless lives. As a modern, total war, it brought men and women into active battle zones across Europe as well as in parts of Africa and Asia. New technology further extended the borders of the war. <span>Air power </span>made it possible to launch attacks against civilian populations at some distance from traditional frontlines, and U-boats sank passenger ships, such as the Lusitania in 1915, that were loaded with men, women, and children crossing the Atlantic. In addition, albeit with less novelty, invading armies ended up occupying swathes of territory. Civilian women and men in Belgium, the north and east of France, Serbia, and parts of the Russian empire among other locales came under the control of occupying powers.
