The leaders of the ruling National Congress Party (NCP) and the former rebel Sudan People's Liberation Movement (SPLM) have failed to resolve their disagreements on the implementation of the January 2005 peace agreement which ended the country's 21-year civil war. Despite the difficulties, President Umar al-Bashir and the First Vice-President Salva Kiir Mayardit affirmed their determination to fully implement the provisions of the Comprehensive Peace Agreement (CPA), which was signed in Nairobi, Kenya.