Meet Mark Green: What to know about ONE’s new CEO

Amb. Mark Andrew Green (ret.) became President & CEO of ONE in May 2026, bringing decades of experience in public service, diplomacy, development, and advocacy. But titles only tell part of the story. From teaching in a village in Kenya to serving as U.S. Ambassador to Tanzania, from helping advance landmark global health initiatives to leading some of the world’s most […] The post Meet Mark…