A/HRC/4/48 page 15 61. Also worthy of mention is the approval by Congress of a reform of the social security system to ensure universal health-service coverage by 2009. The achievement of universal coverage is an opportunity to progress towards a significant reduction in the high levels of maternal mortality. Complementing the increase in school places achieved in 2006, it is hoped that the Colombian State will be able to guarantee universal and free primary education. Unemployment remains constant at approximately 12 per cent, affecting primarily women. The underemployment rate is 33.3 per cent. Malnutrition, linked to poverty, is greatest in rural areas. Of particular importance are the adoption and implementation of a public food security policy. V. SITUATION OF INTERNATIONAL HUMANITARIAN LAW11 62. The OHCHR Office in Colombia received numerous complaints of conduct through which persons directly participating in the hostilities infringed the humanitarian principles and standards applicable to the internal armed conflict. Most of these breaches were attributed to illegal armed groups; in other cases, responsibility was attributed to members of the security forces. The Ombudsman’s Office recorded an increase in complaints of breaches of international humanitarian law (IHL) attributed to guerrilla groups, particularly the FARC-EP. 63. The armed conflict continues to have a harmful effect on the entire Colombian population, particularly peasants, women, children, and members of indigenous and Afro-Colombian communities. The illegal armed groups continued to ignore the recommendations on IHL addressed to them by the High Commissioner in previous years. 64. The conservation of the cultural identity of the indigenous and Afro-Colombian communities, the integrity of their territories, and the stability of their forms of social organization have been jeopardized. Their members have been victims of murders, threats, and stigmatization attributed to members of the illegal armed groups, and of extrajudicial executions, arbitrary arrests and accusations ascribed to members of the security forces. Among the indigenous communities most affected are those in Nariño, Cauca, Sierra Nevada de Santa Marta, Chocó and the Amazonia. In Putumayo, Caquetá and Guaviare, several indigenous peoples remain at risk of extinction. The Constitutional Court emphasized the need for greater efforts to prevent the displacement of indigenous and Afro-Colombian peoples especially affected by this phenomenon during the past year.12 65. In 2006, the armed conflict continued to generate forced displacements and isolation of communities. 11 Breaches of international humanitarian law in the Colombian context are understood to be actions or omissions contrary to common article 3 of the Geneva Conventions of 1949, its Additional Protocol II and relevant customary international law, when they are committed by persons directly participating in hostilities. Some of the violations and breaches constitute crimes against humanity or war crimes that could be judged by the International Criminal Court. 12 Constitutional Court decision No. 218, 2006.