Oromo history demonstrates that the Oromo people had been heroic when they were organized under the gadaa system of government. Between the third and fourth gadaa grades (i.e., from 16 to 32 years), Oromo boys became adolescent and initiated into taking serious responsibilities, including protecting the security of the Oromo country. The ruling group had responsibility to assign senior leaders and experts to instruct and advise these young men in the importance of leadership, organization, and warfare.