German Defense Minister Ursula von der Leyen (R, Front), whose country holds the United Nations Security Council presidency for the month of April, addresses a Security Council open debate on women in peacekeeping at the UN headquarters in New York, on April 11, 2019. UN Secretary-General Antonio Guterres on Thursday called for more women in peacekeeping missions, saying they make mandates more effective. (Xinhua/Li Muzi)