This is quite interesting!

Over 70 years ago, British diplomat Lord Arthur Ponsonby (1871--1946) wrote in his book Falsehood in Wartime about the perennial propaganda claims of wartime leaders. Belgian historian Anne Morelli has recently shed fresh light on Ponsonby's analysis, distilling his findings on wartime propaganda into 10 principles as follows:

1. We do not want war;
2. The other side is solely responsible for the war;
3. The enemy has the face of the devil;
4. It is a noble cause that we defend and not particular interests;
5. The enemy commits atrocities knowingly; if we make unfortunate
mistakes, it is involuntary;
6. The enemy uses unauthorized weapons;
7. We suffer very few losses, while the losses of the enemy are enormous;
8. Artists and intellectuals support our cause;
9. Our cause has a sacred nature;
10. Those who question our statements are traitors.