For governments at war, the media is an instrument of war or an element in war that is to be controlled.
Vietnam is often called our only uncensored war, but that only means that the government wasn't vetting the pictures and words.
All governments in all wars have used all the means at their disposal to put their own motives, decisions and actions, and the actions of their military forces, in the best possible light.
The U.S. Government has in recent years fought what it termed wars against AIDs, drug abuse, poverty, illiteracy and terrorism. Each of those wars has budgets, legislation, offices, officials, letterhead - everything necessary in a bureaucracy to tell you something is real.