The facts show that when a government decides to go to war or that they confiscate property, that they really don't have that kind of authority. In today's world, they will point to the Constitution and say that the "people" are the ones who gave them the power. However, the "people" cannot replace the natural moral order and violence should only be used in self-defense or in defense of innocent people. If the government has a military in order to defend a nation, then it can only morally use that power of violence in self-defense and not to build an empire.
Reasons for the continuing violence
The violence from the government comes from the fact that most normal people cannot tolerate communist style governments. Communism and socialism are probably the worst styles of government mankind as ever devised. In order to enforce such a horrible system, the governments must use violence against those who object. This use of violence is the reason why all of the governments of the world have been able to deploy this Satanic form of government. A peaceful group of people wouldn't consider such a thing. In the normal course of living, there are only those rare moments when any violence is justified. But in the communist state, violence is a way of life, especially for the people who work in "law enforcement."
The double standard
If find it quite hypocritical when the government officers kill millions of people in order to establish peace. None of the governments had any good reason to get involved in the World Wars where millions were slaughtered. People have gone to war to fight communism when it was the communists that sent them there in the first place.
There needs to be a higher moral order based upon the natural law. The governments and the religions have been complete failures in providing for a peaceful world. In fact, their existence is the reason for all the wars. If it is wrong for me and my friends to go out and rob someone, then it should be the same way when people that call themselves the government does the same thing.
Walter Allen Thompson has a new book called Natural Law: The True Supreme Law of the Land