Tjada D’Oyen McKenna is chief executive officer at Mercy Corps, where she leads a global team of nearly 6,000 humanitarians working on the front lines of today’s biggest crises in more than 40 countries. Previously, she served in leadership roles with CARE and Habitat for Humanity and spent more than a decade working to end world hunger in roles with the Bill & Melinda Gates Foundation and the U.S. government.