Propaganda is the process of altering the way people think and feel about events. It affects how they look at values and priorities. It covers up what might be described as repulsive, immoral or otherwise unacceptable events by showing them as attractive and acceptable. Photographs used this way in war, for the first time it provided the ability to deceive and make things acceptable to the public. It was also used manipulate material and provide information easily accepted by the general public because it appeared to be from reliable government sources.
In the bottom photograph The French paper Les Annales of January 27, 1918 retouched in a map of the Balkans and parts of Russia to show Germany's alleged military ambitions. The faces have also been manipulated to give a more brutal and sinister look