At this time, in France, soldiers have same censorship for their (paper) letters.

Civil people should not have to know about the war front situation, how it was hard, how troups were massacred, how rebellion goes in troups. All have to be nice so that civils dont be against this butchery. And if you were against the war, you were considered as a traitor for your nation.

Can make parallel with Bush junior militar action in Irak when it was supposed to be against terrorism, people which were not for this action become de facto "anti-us" ones. Black or white, no grey.

http://fr.wikipedia.org/wiki/Premi%C3%A8re_guerre_ mondiale (search censure)