Ramtane Lamamra (R, front), African Union High Representative for Silencing the Guns in Africa by 2020, speaks at a Security Council open debate on silencing the guns in Africa, at the UN headquarters in New York, Feb. 27, 2019. The UN Security Council on Wednesday adopted a resolution expressing its readiness to contribute to the African Union's pledge to "end all wars in Africa by 2020" and "achieve the goal of a conflict-free Africa". (Xinhua/Li Muzi)