U.S. Ambassador to the United Nations Samantha Power speaks at left as Multinational Joint Task Force Commander Maj. Gen. Lamidi Adeosun, center, greets United States Special Operations Command Africa Commander Brig. Gen. Donald Bolduc, right, during a meeting with the task force at their headquarters in N'Djamena, Chad, Wednesday, April 20, 2016. Power is traveling to Cameroon, Chad, and Nigeria to highlight the growing threat Boko Haram poses to the Lake Chad Basin region. (AP Photo/Andrew Harnik)
