Kenyan's President Mwai Kibaki (R) and Chief of the Defence Forces (CDF) General Julius Karangi arrive for Kenya's Mashujaa Day (Hero's Day) celebrations at the Nyayo National Stadium in Nairobi October 20, 2012. The national holiday commemorates those who had taken part in the country's struggle for liberation. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY ANNIVERSARY POLITICS MILITARY)