 Defence spending continues to represent an important share of the national budget, largely due to continuing security problems along the frontiers with the Democratic Republic of the Congo and Burundi and lingering concerns about Uganda's intentions towards its former ally.In 2010, the United Nations released a report accusing the Rwandan army of committing wide scale human rights violations and crimes against humanity in the Democratic Republic of the Congo during the First and Second Congo Wars, charges denied by the Rwandan government.Rwanda has been governed by a strict hierarchy since precolonial times.