"In wartime they attack a part of the body that other weapons cannot reach in an attempt to affect the way which participants perform on the field of battle." (
Therefore the demonstrated tools refer to political propaganda in the two World Wars.
Propaganda has the ability to change a war, a natural evil, into a so-called "just" war. Violence then is supposedly defense, no more aggression.
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Gaius Julius Caesar (100-44 BC) was a Roman Statesman who came to power through a military career and by buying of votes. His army won the civil war, run over Spain, Sicily and Egypt, where he made Cleopatra a Queen. For reaching even more power he increased the number of senators. But he also organized social measures to improve the people's food-situation. In February 44 BC he did not accept the kingship offered by Marc Anthony, which made him even more popular. One month later he was murdered during a senate sitting.