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Ms. Nancy Lindborg, President of the U.S. Institute of Peace, moderates a discussion between Ambassador Mark Green, Administrator of the U.S. Agency for International Development, and U.S. Air Force Gen. Paul J. Selva, Vice Chairman of the Joint Chiefs of Staff, during the U.S. Global Leadership Coalition's 2018 State Leaders Summit in Washington, D.C., June 18, 2018. They discussed the world's ongoing humanitarian challenges and how America's tools of diplomacy, defense, and development are working to prevent and solve global crises.