The escalation of the Rwandan civil war in April 1994 resulted in the death of up to one million persons and the displacement of another two million. Agriculture, the main occupation of upwards of 90% of the population, was acutely affected as civil disruptions peaked in the middle of a major growing season.
Civil liberties and the idea of liberty,equality and the right to property. I don't remember the exact one but the philosophers are john Locke and Montesquieu.