The world have witnessed a lot of conflicts, through human history; a lot of wars and problems have been occurred between nations, and when you try to find the reasons behind that destruction and bloods, you will face a very vague sentence which is: conflict of interests.
Water, ways of trade, oil, food, and spoils were the most important aims for wars, which we can shorten in a desire to own not to share with others.
For example, many studies have referred to that the real reason for the American war on IRAQ was the oil, while the united states has announced many times that it was a war against a bad regime which have a nuclear weapons and treat its neighbors, the world have a lot of bad regimes and they have dangerous weapons and not only threat its neighbors but also kill its people, but the US did not move or try to help the victims.
So what is the criteria that define the bad regime, and motivate the other nations to move, it is interests, only spoils.
The more complicate question here is: do you think that all the people will benefit from the spoils ?, In another way: did Americans gain a good economic status or rising their standard of living?, or some of them only that gain the spoils.
The soldiers who lost their life in IRAQ might their families had benefit from the compensation policy in the US army, but the companies and business men who did not participate in the war will benefit from the huge contracts of oil and the reconstruction.
It seems that the victims can be also Americans.