dark, negative, gloomy and other synonyms is what i think made the world war 1 poster effective.
Explanation:
i say this because the poster gave the people/citizens something in common to worry about, death and horror. this imagery probably made other posters least effective because some people don't like to see and/or experience death, horror, and negativity so they keep their heads up and ignore it.
During World War II, Marshall was instrumental in preparing the U.S. Army and Army Air Forces for the invasion of the European continent. Marshall wrote the document that would become the central strategy for all Allied operations in Europe.
in communism everyone is equal so it sounds great on paper but over time people all are at the sand level meaning everyone is.either. poor or rich their isn't any between