The Fletcher School at Tufts University joined The American Academy of Diplomacy (AAD) to host the annual Joseph J. Sisco Memorial Forum.This year's forum, titled "Great Power Competition in the Polycentric World," addressed the emerging era of interstate rivalry. The discussion examined shifts in the global economic and security order, with attention to U.S. policy and the role of the Global South.After opening remarks from Fletcher Dean Rachel Kyte and AAD President Ambassador Ronald Neumann, a panel discussion featured three former senior U.S. officials:- Ambassador Aurelia Brazeal served for over 40 years career at the U.S. State Department. She is first African American woman career Foreign Service officer to be promoted into the Senior Foreign Service and the first to be nominated as an ambassador. Her ambassadorial assignments were as U.S. Ambassador to Ethiopia, to Kenya, and Micronesia.- Ambassador Kathleen Doherty served the U.S. Department of State for 30 years, most recently as a dean of the Foreign Service Institute. She was U.S. Ambassador to Cyprus and Deputy Assistant Secretary of State for Europe. Prior to entering public service, she worked as a journalist, writing for The Washington Post among other publications.- Admiral James Foggo served as commander of United States Naval Forces Europe-Africa and commander of Allied Joint Force Command Naples. Across a decorated career in the U.S. Navy, he was also director of Navy Staff and commander of the Sixth Fleet. He is currently dean at the Center for Maritime Strategy.