Slavery in Angola within the first six months of 1961. The Portuguese Army and Air Force put down the uprising and blacked out the incident to the press. The People's Movement for the Liberation of Angola (MPLA) said the Portuguese military killed ten thousand people in the massacre. Conservative estimates are around 400 casualties. These events are considered the beginning of the Portuguese Colonial War (1961-1974). After the April 1974 Carnation Revolution in Lisbon, Angola was offered independence from Portugal. After independence in 1975, during the Angolan Civil War (1975-2002), both the largest opposition group, National Union for the Total Independence of Angola
Angola–Serbia relations and joint cooperation continued through the Breakup of Yugoslavia, and Angola has expressed its strong support for Serbia on the issue of Kosovo. The Defence minister of Serbia, Dragan Šutanovac, stated in 2011 meeting in Luanda that Serbia is negotiating with the Angolan military authorities for the construction of a new military hospital in the Angola. Angola–Serbia relations Angola–Serbia relations are foreign relations between Angola and Serbia. Both countries maintain diplomatic relations established between Angola and Socialist Federal Republic of Yugoslavia in 1975, following Angola's independence. Angola has an embassy in Belgrade, with ambassador Toko Diakenga Serao, and Serbia has