Contempt for the enemy, if illustrated, can prove to be an unwise form of falsehood. There was a time when German soldiers were popularly represented… - Arthur Ponsonby, 1st Baron Ponsonby of Shulbrede

When war is declared, Truth is the first casualty. books.google

There are some who object to war because of its immorality, there are some who shrink from the arbitrament of arms because of its increased cruelty and barbarity; there are a growing number who protest against this method, at the outset known to be unsuccessful, of attempting to settle international disputes because of its imbecility and futility. But there is not a living soul in any country who does not deeply resent having his passions roused, his indignation inflamed, his patriotism exploited, and his highest ideals desecrated by concealment, subterfuge, fraud, falsehood, trickery, and deliberate lying on the part of those in whom he is taught to repose confidence and to whom he is enjoined to pay respect.

People must never be allowed to become despondent; so victories must be exaggerated and defeats, if not concealed, at any rate minimized, and the stimulus of indignation , horror, and hatred must be assiduously and continuously pumped into the public mind by means of "propaganda."