Posonby’s Ten Rules of Propaganda:
1. We don’t want war, we are only defending ourselves
2. The other guy is the sole responsible for this war
3. Our adversary’s leader is evil and looks evil
4. We are defending a noble purpose, not special interest
5. The enemy is purposefully causing atrocities; we only commit mistakes
6. The enemy is using unlawful weapons
7. We have very little losses, the enemy is losing big
8. Intellectuals and artists support our cause
9. Our cause is sacred
10. Those who doubt our propaganda are traitors.
(From here.)