“War is very commonly defined as an armed conflict between governments (in the case of international wars) or between a government and an at least somewhat organized domestic armed group (for civil wars) in which at least 1,000 people are killed each year as a direct consequence, or a fairly direct one (caught in the crossfire), of the fighting.”

- John Mueller, War Has Almost Ceased to Exist: An Assessment, 2009.
fonte do texto original: http://politicalscience.osu.edu/faculty/jmueller//THISPSQ.pdf