On 22 March 2002, Jonas Savimbi was killed in action against government troops. UNITA and the MPLA reached a cease-fire shortly afterwards. UNITA gave up its armed wing and assumed the role of a major opposition party. Although the political situation of the country began to stabilise, regular democratic processes did not prevail until the elections in Angola in 2008 and 2012 and the adoption of a new constitution in 2010, all of which strengthened the prevailing dominant-party system.